537 U.S. 186 (2003)

ELDRED ET AL.
v.
ASHCROFT, ATTORNEY GENERAL

No. 01-618.

Supreme Court of United States.

Argued October 9, 2002. Decided January 15, 2003. CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR THE DISTRICT OF COLUMBIA CIRCUIT.

*187 *188 *189 *190 *191 GINSBURG, J., delivered the opinion of the Court, in which REHNQUIST, C. J., and O'CONNOR, SCALIA, KENNEDY, SOUTER, and THOMAS, JJ., joined. STEVENS, J., post, p. 222, and BREYER, J., post, p. 242, filed dissenting opinions.

Lawrence Lessig argued the cause for petitioners. With him on the briefs were Kathleen M. Sullivan, Alan B. Morrison, Edward Lee, Charles Fried, Geoffrey S. Stewart, Donald B. Ayer, Robert P. Ducatman, Daniel H. Bromberg, Charles R. Nesson, and Jonathan L. Zittrain.

Solicitor General Olson argued the cause for respondent. With him on the brief were Assistant Attorney General McCallum, Deputy Solicitor General Wallace, Jeffrey A. Lamken, William Kanter, and John S. Koppel.^[*]

*192 JUSTICE GINSBURG delivered the opinion of the Court.

This case concerns the authority the Constitution assigns to Congress to prescribe the duration of copyrights. The Copyright and Patent Clause of the Constitution, Art. I, § 8, cl. 8, provides as to copyrights: "Congress shall have *193 Power ... [t]o promote the Progress of Science ... by securing [to Authors] for limited Times ... the exclusive Right to their . . . Writings." In 1998, in the measure here under inspection, Congress enlarged the duration of copyrights by 20 years. Copyright Term Extension Act (CTEA), Pub. L. 105-298, §§ 102(b) and (d), 112 Stat. 2827-2828 (amending 17 U.S.C. §§ 302, 304). As in the case of prior extensions, principally in 1831, 1909, and 1976, Congress provided for application of the enlarged terms to existing and future copyrights alike.

Petitioners are individuals and businesses whose products or services build on copyrighted works that have gone into the public domain. They seek a determination that the CTEA fails constitutional review under both the Copyright Clause's "limited Times" prescription and the First Amendment's free speech guarantee. Under the 1976 Copyright Act, copyright protection generally lasted from the work's creation until 50 years after the author's death. Pub. L. 94-553, § 302(a), 90 Stat. 2572 (1976 Act). Under the CTEA, most copyrights now run from creation until 70 years after the author's death. 17 U.S.C. § 302(a). Petitioners do not challenge the "life-plus-70-years" timespan itself. "Whether 50 years is enough, or 70 years too much," they acknowledge, "is not a judgment meet for this Court." Brief for Petitioners 14.^[1] Congress went awry, petitioners maintain, not with respect to newly created works, but in enlarging the term for published works with existing copyrights. The "limited Tim[e]" in effect when a copyright is secured, petitioners urge, becomes the constitutional boundary, a clear line beyond the power of Congress to extend. See ibid. As to the First Amendment, petitioners contend that the CTEA is a content-neutral regulation of speech that fails inspection *194 under the heightened judicial scrutiny appropriate for such regulations.

In accord with the District Court and the Court of Appeals, we reject petitioners' challenges to the CTEA. In that 1998 legislation, as in all previous copyright term extensions, Congress placed existing and future copyrights in parity. In prescribing that alignment, we hold, Congress acted within its authority and did not transgress constitutional limitations.

I

A

We evaluate petitioners' challenge to the constitutionality of the CTEA against the backdrop of Congress' previous exercises of its authority under the Copyright Clause. The Nation's first copyright statute, enacted in 1790, provided a federal copyright term of 14 years from the date of publication, renewable for an additional 14 years if the author survived the first term. Act of May 31, 1790, ch. 15, § 1, 1 Stat. 124 (1790 Act). The 1790 Act's renewable 14-year term applied to existing works (i. e., works already published and works created but not yet published) and future works alike. Ibid. Congress expanded the federal copyright term to 42 years in 1831 (28 years from publication, renewable for an additional 14 years), and to 56 years in 1909 (28 years from publication, renewable for an additional 28 years). Act of Feb. 3, 1831, ch. 16, §§ 1, 16, 4 Stat. 436, 439 (1831 Act); Act of Mar. 4, 1909, ch. 320, §§ 23-24, 35 Stat. 1080-1081 (1909 Act). Both times, Congress applied the new copyright term to existing and future works, 1831 Act §§ 1, 16; 1909 Act §§ 23-24; to qualify for the 1831 extension, an existing work had to be in its initial copyright term at the time the Act became effective, 1831 Act §§ 1, 16.

In 1976, Congress altered the method for computing federal copyright terms. 1976 Act §§ 302-304. For works created *195 by identified natural persons, the 1976 Act provided that federal copyright protection would run from the work's creation, not—as in the 1790, 1831, and 1909 Acts—its publication; protection would last until 50 years after the author's death. § 302(a). In these respects, the 1976 Act aligned United States copyright terms with the then-dominant international standard adopted under the Berne Convention for the Protection of Literary and Artistic Works. See H. R. Rep. No. 94-1476, p. 135 (1976). For anonymous works, pseudonymous works, and works made for hire, the 1976 Act provided a term of 75 years from publication or 100 years from creation, whichever expired first. § 302(c).

These new copyright terms, the 1976 Act instructed, governed all works not published by its effective date of January 1, 1978, regardless of when the works were created. §§ 302-303. For published works with existing copyrights as of that date, the 1976 Act granted a copyright term of 75 years from the date of publication, §§ 304(a) and (b), a 19-year increase over the 56-year term applicable under the 1909 Act.

The measure at issue here, the CTEA, installed the fourth major duration extension of federal copyrights.^[2] Retaining the general structure of the 1976 Act, the CTEA enlarges the terms of all existing and future copyrights by 20 years. For works created by identified natural persons, the term now lasts from creation until 70 years after the author's *196 death. 17 U.S.C. § 302(a). This standard harmonizes the baseline United States copyright term with the term adopted by the European Union in 1993. See Council Directive 93/98/EEC of 29 October 1993 Harmonizing the Term of Protection of Copyright and Certain Related Rights, 1993 Official J. Eur. Coms. (L 290), p. 9 (EU Council Directive 93/98). For anonymous works, pseudonymous works, and works made for hire, the term is 95 years from publication or 120 years from creation, whichever expires first. 17 U.S.C. § 302(c).

Paralleling the 1976 Act, the CTEA applies these new terms to all works not published by January 1, 1978. §§ 302(a), 303(a). For works published before 1978 with existing copyrights as of the CTEA's effective date, the CTEA extends the term to 95 years from publication. §§ 304(a) and (b). Thus, in common with the 1831, 1909, and 1976 Acts, the CTEA's new terms apply to both future and existing copyrights.^[3]

B

Petitioners' suit challenges the CTEA's constitutionality under both the Copyright Clause and the First Amendment. On cross-motions for judgment on the pleadings, the District Court entered judgment for the Attorney General (respondent here). 74 F. Supp.2d 1 (DC 1999). The court held that the CTEA does not violate the "limited Times" restriction of the Copyright Clause because the CTEA's terms, though *197 longer than the 1976 Act's terms, are still limited, not perpetual, and therefore fit within Congress' discretion. Id., at 3. The court also held that "there are no First Amendment rights to use the copyrighted works of others." Ibid.

The Court of Appeals for the District of Columbia Circuit affirmed. 239 F.3d 372 (2001). In that court's unanimous view, Harper & Row, Publishers, Inc. v. Nation Enterprises, 471 U.S. 539 (1985), foreclosed petitioners' First Amendment challenge to the CTEA. 239 F.3d, at 375. Copyright, the court reasoned, does not impermissibly restrict free speech, for it grants the author an exclusive right only to the specific form of expression; it does not shield any idea or fact contained in the copyrighted work, and it allows for "fair use" even of the expression itself. Id., at 375-376.

A majority of the Court of Appeals also upheld the CTEA against petitioners' contention that the measure exceeds Congress' power under the Copyright Clause. Specifically, the court rejected petitioners' plea for interpretation of the "limited Times" prescription not discretely but with a view to the "preambular statement of purpose" contained in the Copyright Clause: "To promote the Progress of Science." Id., at 377-378. Circuit precedent, Schnapper v. Foley, 667 F.2d 102 (CADC 1981), the court determined, precluded that plea. In this regard, the court took into account petitioners' acknowledgment that the preamble itself places no substantive limit on Congress' legislative power. 239 F.3d, at 378.

The appeals court found nothing in the constitutional text or its history to suggest that "a term of years for a copyright is not a `limited Time' if it may later be extended for another `limited Time.'" Id., at 379. The court recounted that "the First Congress made the Copyright Act of 1790 applicable to subsisting copyrights arising under the copyright laws of the several states." Ibid. That construction of Congress' authority under the Copyright Clause "by [those] contemporary with [the Constitution's] formation," the court said, merited *198 "very great" and in this case "almost conclusive" weight. Ibid. (quoting Burrow-Giles Lithographic Co. v. Sarony, 111 U.S. 53, 57 (1884)). As early as McClurg v. Kingsland, 1 How. 202 (1843), the Court of Appeals added, this Court had made it "plain" that the same Clause permits Congress to "amplify the terms of an existing patent." 239 F.3d, at 380. The appeals court recognized that this Court has been similarly deferential to the judgment of Congress in the realm of copyright. Ibid. (citing Sony Corp. of America v. Universal City Studios, Inc., 464 U.S. 417 (1984); Stewart v. Abend, 495 U.S. 207 (1990)).

Concerning petitioners' assertion that Congress might evade the limitation on its authority by stringing together "an unlimited number of `limited Times,'" the Court of Appeals stated that such legislative misbehavior "clearly is not the situation before us." 239 F.3d, at 379. Rather, the court noted, the CTEA "matches" the baseline term for "United States copyrights [with] the terms of copyrights granted by the European Union." Ibid. "[I]n an era of multinational publishers and instantaneous electronic transmission," the court said, "harmonization in this regard has obvious practical benefits" and is "a `necessary and proper' measure to meet contemporary circumstances rather than a step on the way to making copyrights perpetual." Ibid.

Judge Sentelle dissented in part. He concluded that Congress lacks power under the Copyright Clause to expand the copyright terms of existing works. Id., at 380-384. The Court of Appeals subsequently denied rehearing and rehearing en banc. 255 F.3d 849 (2001).

We granted certiorari to address two questions: whether the CTEA's extension of existing copyrights exceeds Congress' power under the Copyright Clause; and whether the CTEA's extension of existing and future copyrights violates the First Amendment. 534 U.S. 1126 and 1160 (2002). We now answer those two questions in the negative and affirm.

*199 II

A

We address first the determination of the courts below that Congress has authority under the Copyright Clause to extend the terms of existing copyrights. Text, history, and precedent, we conclude, confirm that the Copyright Clause empowers Congress to prescribe "limited Times" for copyright protection and to secure the same level and duration of protection for all copyright holders, present and future.

The CTEA's baseline term of life plus 70 years, petitioners concede, qualifies as a "limited Tim[e]" as applied to future copyrights.^[4] Petitioners contend, however, that existing copyrights extended to endure for that same term are not "limited." Petitioners' argument essentially reads into the text of the Copyright Clause the command that a time prescription, once set, becomes forever "fixed" or "inalterable." The word "limited," however, does not convey a meaning so constricted. At the time of the Framing, that word meant what it means today: "confine[d] within certain bounds," "restrain[ed]," or "circumscribe[d]." S. Johnson, A Dictionary of the English Language (7th ed. 1785); see T. Sheridan, A Complete Dictionary of the English Language (6th ed. 1796) ("confine[d] within certain bounds"); Webster's Third New International Dictionary 1312 (1976) ("confined within limits"; "restricted in extent, number, or duration"). Thus understood, a timespan appropriately "limited" as applied to future copyrights does not automatically cease to be "limited" when applied to existing copyrights. And as we observe, infra, at 209-210, there is no cause to suspect that a *200 purpose to evade the "limited Times" prescription prompted Congress to adopt the CTEA.

To comprehend the scope of Congress' power under the Copyright Clause, "a page of history is worth a volume of logic." New York Trust Co. v. Eisner, 256 U.S. 345, 349 (1921) (Holmes, J.). History reveals an unbroken congressional practice of granting to authors of works with existing copyrights the benefit of term extensions so that all under copyright protection will be governed evenhandedly under the same regime. As earlier recounted, see supra, at 194, the First Congress accorded the protections of the Nation's first federal copyright statute to existing and future works alike. 1790 Act § 1.^[5] Since then, Congress has regularly applied *201 duration extensions to both existing and future copyrights. 1831 Act §§ 1, 16; 1909 Act §§ 23-24; 1976 Act §§ 302-303; 17 U.S.C. §§ 302-304.^[6]

Because the Clause empowering Congress to confer copyrights also authorizes patents, congressional practice with respect to patents informs our inquiry. We count it significant that early Congresses extended the duration of numerous individual patents as well as copyrights. See, e. g., Act of Jan. 7, 1808, ch. 6, 6 Stat. 70 (patent); Act of Mar. 3, 1809, ch. 35, 6 Stat. 80 (patent); Act of Feb. 7, 1815, ch. 36, 6 Stat. 147 (patent); Act of May 24, 1828, ch. 145, 6 Stat. 389 (copyright); Act of Feb. 11, 1830, ch. 13, 6 Stat. 403 (copyright); *202 see generally Ochoa, Patent and Copyright Term Extension and the Constitution: A Historical Perspective, 49 J. Copyright Soc. 19 (2001). The courts saw no "limited Times" impediment to such extensions; renewed or extended terms were upheld in the early days, for example, by Chief Justice Marshall and Justice Story sitting as circuit justices. See Evans v. Jordan, 8 F. Cas. 872, 874 (No. 4,564) (CC Va. 1813) (Marshall, J.) ("Th[e] construction of the constitution which admits the renewal of a patent, is not controverted. A renewed patent ... confers the same rights, with an original."), aff'd, 9 Cranch 199 (1815); Blanchard v. Sprague, 3 F. Cas. 648, 650 (No. 1,518) (CC Mass. 1839) (Story, J.) ("I never have entertained any doubt of the constitutional authority of congress" to enact a 14-year patent extension that "operates retrospectively"); see also Evans v. Robinson, 8 F. Cas. 886, 888 (No. 4,571) (CC Md. 1813) (Congresses "have the exclusive right ... to limit the times for which a patent right shall be granted, and are not restrained from renewing a patent or prolonging" it.).^[7]

Further, although prior to the instant case this Court did not have occasion to decide whether extending the duration of existing copyrights complies with the "limited Times" prescription, the Court has found no constitutional barrier to the legislative expansion of existing patents.^[8]McClurg v. *203 Kingsland, 1 How. 202 (1843), is the pathsetting precedent. The patentee in that case was unprotected under the law in force when the patent issued because he had allowed his employer briefly to practice the invention before he obtained the patent. Only upon enactment, two years later, of an exemption for such allowances did the patent become valid, retroactive to the time it issued. McClurg upheld retroactive application of the new law. The Court explained that the legal regime governing a particular patent "depend[s] on the law as it stood at the emanation of the patent, together with such changes as have been since made; for though they may be retrospective in their operation, that is not a sound objection to their validity." Id., at 206.^[9] Neither is it a sound *204 objection to the validity of a copyright term extension, enacted pursuant to the same constitutional grant of authority, that the enlarged term covers existing copyrights.

Congress' consistent historical practice of applying newly enacted copyright terms to future and existing copyrights reflects a judgment stated concisely by Representative Huntington at the time of the 1831 Act: "[J]ustice, policy, and equity alike forb[id]" that an "author who had sold his [work] a week ago, be placed in a worse situation than the author who should sell his work the day after the passing of [the] act." 7 Cong. Deb. 424 (1831); accord, Symposium, The Constitutionality of Copyright Term Extension, 18 Cardozo Arts & Ent. L. J. 651, 694 (2000) (Prof. Miller) ("[S]ince 1790, it has indeed been Congress's policy that the author of yesterday's work should not get a lesser reward than the author of tomorrow's work just because Congress passed a statute lengthening the term today."). The CTEA follows this historical practice by keeping the duration provisions of the 1976 Act largely in place and simply adding 20 years to each of them. Guided by text, history, and precedent, we cannot agree with petitioners' submission that extending the duration of existing copyrights is categorically beyond Congress' authority under the Copyright Clause.

Satisfied that the CTEA complies with the "limited Times" prescription, we turn now to whether it is a rational exercise of the legislative authority conferred by the Copyright Clause. On that point, we defer substantially to Congress. *205 Sony, 464 U.S., at 429 ("[I]t is Congress that has been assigned the task of defining the scope of the limited monopoly that should be granted to authors ... in order to give the public appropriate access to their work product.").^[10]

The CTEA reflects judgments of a kind Congress typically makes, judgments we cannot dismiss as outside the Legislature's domain. As respondent describes, see Brief for Respondent 37-38, a key factor in the CTEA's passage was a 1993 European Union (EU) directive instructing EU members to establish a copyright term of life plus 70 years. EU Council Directive 93/98, Art. 1(1), p. 11; see 144 Cong. Rec. S12377-S12378 (daily ed. Oct. 12, 1998) (statement of Sen. Hatch). Consistent with the Berne Convention, the EU directed its members to deny this longer term to the works of any non-EU country whose laws did not secure the same extended term. See Berne Conv. Art. 7(8); P. Goldstein, International Copyright § 5.3, p. 239 (2001). By extending the baseline United States copyright term to life plus 70 years, Congress sought to ensure that American authors would receive *206 the same copyright protection in Europe as their European counterparts.^[11] The CTEA may also provide greater incentive for American and other authors to create and disseminate their work in the United States. See Perlmutter, Participation in the International Copyright System as a Means to Promote the Progress of Science and Useful Arts, 36 Loyola (LA) L. Rev. 323, 330 (2002) ("[M]atching th[e] level of [copyright] protection in the United States [to that in the EU] can ensure stronger protection for U.S. works abroad and avoid competitive disadvantages vis-à-vis foreign rightholders."); see also id., at 332 (the United States could not "play a leadership role" in the give-and-take evolution of the international copyright system, indeed it would "lose all flexibility," "if the only way to promote the progress of science were to provide incentives to create new works").^[12]

In addition to international concerns,^[13] Congress passed the CTEA in light of demographic, economic, and technological *207 changes, Brief for Respondent 25-26, 33, and nn. 23 and 24,^[14] and rationally credited projections that longer terms would encourage copyright holders to invest in the restoration and public distribution of their works, id., at 34-37; see H. R. Rep. No. 105-452, p. 4 (1998) (term extension "provide[s] copyright owners generally with the incentive to restore older works and further disseminate them to the public").^[15]

*208 In sum, we find that the CTEA is a rational enactment; we are not at liberty to second-guess congressional determinations and policy judgments of this order, however debatable or arguably unwise they may be. Accordingly, we cannot conclude that the CTEA — which continues the unbroken congressional practice of treating future and existing copyrights in parity for term extension purposes — is an impermissible exercise of Congress' power under the Copyright Clause.

B

Petitioners' Copyright Clause arguments rely on several novel readings of the Clause. We next address these arguments and explain why we find them unpersuasive.

1

Petitioners contend that even if the CTEA's 20-year term extension is literally a "limited Tim[e]," permitting Congress to extend existing copyrights allows it to evade the "limited Times" constraint by creating effectively perpetual copyrights through repeated extensions. We disagree.

*209 As the Court of Appeals observed, a regime of perpetual copyrights "clearly is not the situation before us." 239 F.3d, at 379. Nothing before this Court warrants construction of the CTEA's 20-year term extension as a congressional attempt to evade or override the "limited Times" constraint.^[16] Critically, we again emphasize, petitioners fail to *210 show how the CTEA crosses a constitutionally significant threshold with respect to "limited Times" that the 1831, 1909, and 1976 Acts did not. See supra, at 194-196; Austin, supra n. 13, at 56 ("If extending copyright protection to works already in existence is constitutionally suspect," so is "extending the protections of U.S. copyright law to works by foreign authors that had already been created and even first published when the federal rights attached."). Those earlier Acts did not create perpetual copyrights, and neither does the CTEA.^[17]

2

Petitioners dominantly advance a series of arguments all premised on the proposition that Congress may not extend an existing copyright absent new consideration from the author. They pursue this main theme under three headings. Petitioners contend that the CTEA's extension of existing copyrights (1) overlooks the requirement of "originality," (2) fails to "promote the Progress of Science," and (3) ignores copyright's quid pro quo.

*211 Petitioners' "originality" argument draws on Feist Publications, Inc. v. Rural Telephone Service Co., 499 U.S. 340 (1991). In Feist, we observed that "[t]he sine qua non of copyright is originality," id., at 345, and held that copyright protection is unavailable to "a narrow category of works in which the creative spark is utterly lacking or so trivial as to be virtually nonexistent," id., at 359. Relying on Feist, petitioners urge that even if a work is sufficiently "original" to qualify for copyright protection in the first instance, any extension of the copyright's duration is impermissible because, once published, a work is no longer original.

Feist, however, did not touch on the duration of copyright protection. Rather, the decision addressed the core question of copyrightability, i. e., the "creative spark" a work must have to be eligible for copyright protection at all. Explaining the originality requirement, Feist trained on the Copyright Clause words "Authors" and "Writings." Id., at 346-347. The decision did not construe the "limited Times" for which a work may be protected, and the originality requirement has no bearing on that prescription.

More forcibly, petitioners contend that the CTEA's extension of existing copyrights does not "promote the Progress of Science" as contemplated by the preambular language of the Copyright Clause. Art. I, § 8, cl. 8. To sustain this objection, petitioners do not argue that the Clause's preamble is an independently enforceable limit on Congress' power. See 239 F.3d, at 378 (Petitioners acknowledge that "the preamble of the Copyright Clause is not a substantive limit on Congress' legislative power." (internal quotation marks omitted)). Rather, they maintain that the preambular language identifies the sole end to which Congress may legislate; accordingly, they conclude, the meaning of "limited Times" must be "determined in light of that specified end." Brief for Petitioners 19. The CTEA's extension of existing copyrights categorically fails to "promote the Progress of Science," petitioners argue, because it does not stimulate the *212 creation of new works but merely adds value to works already created.

As petitioners point out, we have described the Copyright Clause as "both a grant of power and a limitation," Graham v. John Deere Co. of Kansas City, 383 U.S. 1, 5 (1966), and have said that "[t]he primary objective of copyright" is "[t]o promote the Progress of Science," Feist, 499 U.S., at 349. The "constitutional command," we have recognized, is that Congress, to the extent it enacts copyright laws at all, create a "system" that "promote[s] the Progress of Science." Graham, 383 U.S., at 6.^[18]

We have also stressed, however, that it is generally for Congress, not the courts, to decide how best to pursue the Copyright Clause's objectives. See Stewart v. Abend, 495 U.S., at 230 ("Th[e] evolution of the duration of copyright protection tellingly illustrates the difficulties Congress faces. . . . [I]t is not our role to alter the delicate balance *213 Congress has labored to achieve."); Sony, 464 U.S., at 429 ("[I]t is Congress that has been assigned the task of defining the scope of [rights] that should be granted to authors or to inventors in order to give the public appropriate access to their work product."); Graham, 383 U.S., at 6 ("Within the limits of the constitutional grant, the Congress may, of course, implement the stated purpose of the Framers by selecting the policy which in its judgment best effectuates the constitutional aim."). The justifications we earlier set out for Congress' enactment of the CTEA, supra, at 205-207, provide a rational basis for the conclusion that the CTEA "promote[s] the Progress of Science."

On the issue of copyright duration, Congress, from the start, has routinely applied new definitions or adjustments of the copyright term to both future works and existing works not yet in the public domain.^[19] Such consistent congressional practice is entitled to "very great weight, and when it is remembered that the rights thus established have not been disputed during a period of [over two] centur[ies], it is almost conclusive." Burrow-Giles Lithographic Co. v. Sarony, 111 U.S., at 57. Indeed, "[t]his Court has repeatedly laid down the principle that a contemporaneous legislative exposition of the Constitution when the founders of our Government and framers of our Constitution were actively participating in public affairs, acquiesced in for a long term of years, fixes the construction to be given [the Constitution's] provisions." Myers v. United States, 272 U.S. 52, 175 (1926). Congress' unbroken practice since the founding generation *214 thus overwhelms petitioners' argument that the CTEA's extension of existing copyrights fails per se to "promote the Progress of Science."^[20]

Closely related to petitioners' preambular argument, or a variant of it, is their assertion that the Copyright Clause "imbeds a quid pro quo." Brief for Petitioners 23. They contend, in this regard, that Congress may grant to an "Autho[r]" an "exclusive Right" for a "limited Tim[e]," but only in exchange for a "Writin[g]." Congress' power to confer copyright protection, petitioners argue, is thus contingent upon an exchange: The author of an original work receives an "exclusive Right" for a "limited Tim[e]" in exchange for a dedication to the public thereafter. Extending an existing copyright without demanding additional consideration, petitioners maintain, bestows an unpaid-for benefit on copyright holders and their heirs, in violation of the quid pro quo requirement.

We can demur to petitioners' description of the Copyright Clause as a grant of legislative authority empowering Congress "to secure a bargain — this for that." Id., at 16; see Mazer v. Stein, 347 U.S. 201, 219 (1954) ("The economic philosophy behind the clause empowering Congress to grant patents and copyrights is the conviction that encouragement of individual effort by personal gain is the best way to advance public welfare through the talents of authors and inventors in `Science and useful Arts.'"). But the legislative evolution earlier recalled demonstrates what the bargain entails. Given the consistent placement of existing copyright *215 holders in parity with future holders, the author of a work created in the last 170 years would reasonably comprehend, as the "this" offered her, a copyright not only for the time in place when protection is gained, but also for any renewal or extension legislated during that time.^[21] Congress could rationally seek to "promote . . . Progress" by including in every copyright statute an express guarantee that authors would receive the benefit of any later legislative extension of the copyright term. Nothing in the Copyright Clause bars Congress from creating the same incentive by adopting the same position as a matter of unbroken practice. See Brief for Respondent 31-32.

Neither Sears, Roebuck & Co. v. Stiffel Co., 376 U.S. 225 (1964), nor Bonito Boats, Inc. v. Thunder Craft Boats, Inc., 489 U.S. 141 (1989), is to the contrary. In both cases, we invalidated the application of certain state laws as inconsistent with the federal patent regime. Sears, 376 U.S., at 231-233; Bonito, 489 U.S., at 152. Describing Congress' constitutional authority to confer patents, Bonito Boats noted: "The Patent Clause itself reflects a balance between the need to encourage innovation and the avoidance of monopolies which stifle competition without any concomitant advance in the `Progress of Science and useful Arts.'" Id., at 146. *216 Sears similarly stated that "[p]atents are not given as favors ... but are meant to encourage invention by rewarding the inventor with the right, limited to a term of years fixed by the patent, to exclude others from the use of his invention." 376 U.S., at 229. Neither case concerned the extension of a patent's duration. Nor did either suggest that such an extension might be constitutionally infirm. Rather, Bonito Boats reiterated the Court's unclouded understanding: "It is for Congress to determine if the present system" effectuates the goals of the Copyright and Patent Clause. 489 U.S., at 168. And as we have documented, see supra, at 201-204, Congress has many times sought to effectuate those goals by extending existing patents.

We note, furthermore, that patents and copyrights do not entail the same exchange, and that our references to a quid pro quo typically appear in the patent context. See, e. g., J. E. M. Ag Supply, Inc. v. Pioneer Hi-Bred International, Inc., 534 U.S. 124, 142 (2001) ("The disclosure required by the Patent Act is `the quid pro quo of the right to exclude.'" (quoting Kewanee Oil Co. v. Bicron Corp., 416 U.S. 470, 484 (1974))); Bonito Boats, 489 U.S., at 161 ("the quid pro quo of substantial creative effort required by the federal [patent] statute"); Brenner v. Manson, 383 U.S. 519, 534 (1966) ("The basic quid pro quo ... for granting a patent monopoly is the benefit derived by the public from an invention with substantial utility."); Pennock v. Dialogue, 2 Pet. 1, 23 (1829) (If an invention is already commonly known and used when the patent is sought, "there might be sound reason for presuming, that the legislature did not intend to grant an exclusive right," given the absence of a "quid pro quo."). This is understandable, given that immediate disclosure is not the objective of, but is exacted from, the patentee. It is the price paid for the exclusivity secured. See J. E. M. Ag Supply, 534 U.S., at 142. For the author seeking copyright protection, in contrast, disclosure is the desired objective, not something exacted from the author in exchange for the copyright. *217 Indeed, since the 1976 Act, copyright has run from creation, not publication. See 1976 Act § 302(a); 17 U.S.C. § 302(a).

Further distinguishing the two kinds of intellectual property, copyright gives the holder no monopoly on any knowledge. A reader of an author's writing may make full use of any fact or idea she acquires from her reading. See § 102(b). The grant of a patent, on the other hand, does prevent full use by others of the inventor's knowledge. See Brief for Respondent 22; Alfred Bell & Co. v. Catalda Fine Arts, 191 F.2d 99, 103, n. 16 (CA2 1951) (The monopoly granted by a copyright "is not a monopoly of knowledge. The grant of a patent does prevent full use being made of knowledge, but the reader of a book is not by the copyright laws prevented from making full use of any information he may acquire from his reading." (quoting W. Copinger, Law of Copyright 2 (7th ed. 1936))). In light of these distinctions, one cannot extract from language in our patent decisions — language not trained on a grant's duration — genuine support for petitioners' bold view. Accordingly, we reject the proposition that a quid pro quo requirement stops Congress from expanding copyright's term in a manner that puts existing and future copyrights in parity.^[22]

3

As an alternative to their various arguments that extending existing copyrights violates the Copyright Clause per se, petitioners urge heightened judicial review of such extensions to ensure that they appropriately pursue the purposes of the Clause. See Brief for Petitioners 31-32. Specifically, *218 petitioners ask us to apply the "congruence and proportionality" standard described in cases evaluating exercises of Congress' power under § 5 of the Fourteenth Amendment. See, e. g., City of Boerne v. Flores, 521 U.S. 507 (1997). But we have never applied that standard outside the § 5 context; it does not hold sway for judicial review of legislation enacted, as copyright laws are, pursuant to Article I authorization.

Section 5 authorizes Congress to enforce commands contained in and incorporated into the Fourteenth Amendment. Amdt. 14, § 5 ("The Congress shall have power to enforce, by appropriate legislation, the provisions of this article." (emphasis added)). The Copyright Clause, in contrast, empowers Congress to define the scope of the substantive right. See Sony, 464 U.S., at 429. Judicial deference to such congressional definition is "but a corollary to the grant to Congress of any Article I power." Graham, 383 U.S., at 6. It would be no more appropriate for us to subject the CTEA to "congruence and proportionality" review under the Copyright Clause than it would be for us to hold the Act unconstitutional per se.

For the several reasons stated, we find no Copyright Clause impediment to the CTEA's extension of existing copyrights.

III

Petitioners separately argue that the CTEA is a content-neutral regulation of speech that fails heightened judicial review under the First Amendment.^[23] We reject petitioners' *219 plea for imposition of uncommonly strict scrutiny on a copyright scheme that incorporates its own speech-protective purposes and safeguards. The Copyright Clause and First Amendment were adopted close in time. This proximity indicates that, in the Framers' view, copyright's limited monopolies are compatible with free speech principles. Indeed, copyright's purpose is to promote the creation and publication of free expression. As Harper & Row observed: "[T]he Framers intended copyright itself to be the engine of free expression. By establishing a marketable right to the use