Mr. Justice White
delivered the opinion of the court.
In an endeavor to clarify the consideration of this contro versy we invert somewhat the order in which the facts have been stated in the findings below and refer to previous rulings of this court pertinent to the subject in hand, besides supplementing the same by a reference to relevant matters of public history, of which we take judicial notice.
After the Philippine Islands came under the military control of the United States the President, on July 12,1898, issued an order providing for the enforcement by the military power in those islands of a system of tariff duties. This order, promulgated by the Secretary of War, was' accompanied with an enumeration of the tariff proposed and regulations for the collection of the same. However, for causes which need not be referred to, the tariff in question was subsequently modified and did not go into. operation until November, 1898.
The duties imposed by this tariff were levied on; goods coming into the Philippine Islands, whether from the United States or other countries. This tariff was in force- when the treaty of peace was signed (December IQ, 1898), when the treaty was ratified (April 11, 1899), and was continued by the Philippine Commission'appointed by the President in April, 1900. Indeed, the civil government, as established in the islands by the President, either in virtue of his inherent authority or as a result of the power recognized and conferred by the act' of Congress, approved March 2, 1901 (31 Stat. L... 910), continued the original tariff in force, except as to some modifications not material to be noticed, and formulated its provisions in the shape of a legislative act entitled " An act to revise and amend the tariff laws of the Philippine Archipelago." And this tariff was -in force in March, 1902, when it was expressly approved and continued by Congress. 32 Stat. 54.
In December, 1901, the cases of De Lima v. Bidwell and Dooley v. United States were, by this court, decided. 182 U. S. 1, 222. The first case involved the right to recover duties paid under protest to the collector of the port of New-York .upon sugar- brought' into the United States from the island of Porto Rico during the autumn of 1899 and subsequent co the cession of- the island. The second case involved the right to recover the amount of certain duties on goods carried into Porto Rico from th¿ United States between July 6, 1898, and May 1, 1900, the duties in question having been levied by authority of the general in command of the army of occupation or subsequently by order of -the President as commander-in-chief. In the first case (De Lima v. Bidwell) it was decided that; as the effect of the ratification of the treaty was to take the island of Porto' Rico out of the category of foreign territory within the meaning, of that word as used in existing tariff laws of the United States, no right remained-to enforce, against goods coming from Porto Rico into the United States, the previously enacted tariff of duties, although, considering the terms of the treaty and the relation of the island to the United States, Congress had power to impose a tariff on goods coming from that island into the United States. As a corollary of the doctrine announced in De Lima v. Bidwell, in the second case (Dooley v. The United States) it was held that whilst the President, as commander-in-chief, had authority to impose tariff duties in Porto Rico on goods coming into that country from the United States prior to the ratification of the treaty, no such executive power existed after that ratification. -It was consequently held that none of the duties paid prior to the ratification of the treaty could be recovered, whilst those paid subsequently could be.
In the following year (December 2, 1901) another - case, entitled Dooley v. The United States, was decided. 183 U. S. 151. That case involved the validity of tariff -duties levied in Porto Rico on goods brought into that island from the' United States, the duties in question having been imposed after the ratification of the treaty and in and by virtue of the act of Congress known as the Foraker Act. Applying the principles announced in the' previous cases just referred to, it was held that the duties were' lawful because, although collected after the ratification, they were imposed not simply by virtue of the. authority of the President, acting under. the military power, but in conformity to a valid act of Congress.
And on the same day with the foregoing the case of Fourteen Diamond Rings was decided. 183 U. S. 176. That case involved the validity of tariff duties levied on diamond rings brought from the Philippine Islands into the United States. Adhering to the doctrine settled by the prior rulings, it was' held that, as the Philippine Islands, by the ratification of the treaty, had ceased to be foreign within the meaning of the tariff laws, the imposition of the duties complained of was unlawful. In the course of the opinion the effect of the treaty as applied in the previous cases to Porto Rico was pointed out,' and the status of the Philippine Islands in virtue of the treaty was, in effect, held to be controlled by the former , decisions.
In April, 1905, the two cases of Lincoln v. The United States and Warner, Barnes & Co., Limited, v. The United States were by this court decided. 197 U. S. 419. The eases came here one on error to the District Court Of the United States for the Southern District of New York, and the other by appeal from the Court of Claims. The one (Lincoln case) was commenced on March 29, 1902; the other (Warner, Barnes & Co. case) on January 17, 1902. In both cases recovery from the United States was sought of the amount of duty paid upon goods taken from the United States into the Philippine Islands after the ratification of the treaty with Spain and before the passage of the act of Congress of March 8, 1902. Reversing the judgments which had been rendered below in both cases in favor of the United States, it was declared that there was nothing in the situation of the Philippine Islands which took that territory out of the reach of the doctrine announced in the previous cases which we have reviewed, and it was therefore decided that the President was without power, after the ratification of the treaty, in the absence of express authority from Congress, to impose the tariff duties in question. A contention on the part of the United States that Congress by the second section of the act approved July 1, 1902- (entitled "An act temporarily to provide for the administration of the affairs of civil government in the Philippine Islands, and for other purposes"), had ratified the action of the President in imposing and collecting the duties in controversy, therefore no recovery could be had, was held to be unfounded, for grounds stated in the opinion, to which we shall hereafter advert. The case was heard upon rehearing, and in a decision announced on May 28, 1906, the views previously entertained by the court were reiterated and adhered to. 202 U. S. 484. In the month following (June, 1906) Congress passed an act containing a provision which reads as follows (34 Stat..L. 636):
"That the tariff duties, both import and export, imposed by the authorities of the United States or of the provisional military government thereof in the Philippine Islands prior to March eight, nineteen hundred and two, at all ports and places in said islands, upon all goods, wares, and merchandise imported into said islands from the United States, or from foreign countries, or exported from said islands, are hereby legalized and ratified, and the collection of all such duties prior to March eight, nineteen hundred and two, is hereby legalized and ratified and confirmed as fully to all intents and purposes as if the same had by prior act of Congress been specifically authorized and directed."
Now this case was commenced, after the decision in the Fourteen Diamond Bings, to recover the amount of tariff duties exacted in the Philippine Islands on merchandise brought from the United States, the duties having been collected under the authority of the order of the President after the ratification of the treaty, but before the time when Congress, by § 1 of the act of March 8, 1902, had enacted tariff duties for the Philippine Islands. The case was pending in the Court of Claims when the Lincoln and Warner, Barnes & Co. cases were decided by this court. It was found by the court, below that the military officers of the United States collected the duties and paid over the amount thereof to the treasurer óf the Philippine Islands, and that the money was disbursed for the expenses of that government without, going into the Treasury of the United States. Considering that the original illegality of the duties complained of was established by the previous decisions of this court, and that the act of Congress of June 30,1906, ratifying the collection of duties was beyond the power of Congress to enact, the court below rendered judgment against the United States for the amount of duties paid.
Applying the doctrine settled by this court in the cases to which we have referred, concerning the power to levy tariff duties under the authority of the President, on goods taken from the United States into Porto Rico and the Philippine Islands, or brought into the United States from either of such countries subsequent to the ratification of the treaty and prior to the levy by Congress of tariff duties, it is obvious that the court below correctly held that such tariff exactions were illegal. It follows therefore that the only question open for consideration is whether the court below erred in refusing to give effect to the act of Congress of June 30,1906, which ratified the collection of the duties levied under the order of' the President.
As the text of the act of Congress is unambiguous and manifests as explicitly as can be done the purpose of Congress to ratify, the case comes to the simple question whether Congress possessed the power to ratify which it assumed to exercise. When the controversy is thus reduced to its ultimate issue we think the error committed by the court below, both in reason and authority, is readily demonstrable.
That where an agent, without precedent authority, has exercised in the name of a principal a power which the principal had the capacity to bestow, the'principal.may ratify and affirm the unauthorized act, and thus retroactively give it validity when rights of third persons have not intervened, is so' elementary as to need, but statement. ' That the power of ratification as to matters within their authority may be exercised by Congress, state governments or municipal corporations, ;s also' elementary. We shall not stop to review* the whole subject or cite the numerous cases contained in. the books dealing with the matter, but content ourselves with referring to two cases as to the power of Congress, which are apposite and illustrative. In Hamilton v. Dillin, 21 Wall. 73, the facts were as follows: •During the Civil War the Secretary of the Treasury, with the sanction of the President, adopted rules and- regulations for granting permits to trade between the belligerent lines. One of these rules exacted the payment of a contribution, styled a fee, of four cents a pound on cotton purchased. Hamilton having taken a permit and paid Dillin, surveyor of the port of Nashville, Tennessee, under the regulations, a sum of ihoney for a permit' to trade in cotton, sued to recover the same as having been illegally exacted. In deciding the case ,(p. 88) the court came to consider whether " the action of the executive was authorized, or, if not originally authorized, was confirmed. by Congress." Both these questions were determined in the affirmative. When the court came to consider the legislation relied upon as, having confirmed the- acts of the President in establishing the regulations in question, after stating the same the court declared, "We are also of opinion that the act of July 2, 1864, recognized and confirmed the regulations in question." Mattingly v. The District of Columbia, 97 U. S. 687, concerned the. validity of an act of Congress in effect confirming the doings of the board of public works of the District of Columbia touching the improvement of streets and roads and ratifying certain void assessments for street improvements. The court said (p. 690):
• " We do not propose to inquire whether the charges of the bill are well founded. "Such an inquiry can have no bearing upon the case as it now stands; for were it conceded that the board of public works had no authority to do the work that was done at the time when it was done, and consequently no authority to make an assessment of a part of its cost upon the complainant's property, or to assess in the manner in which the assessment was made, the concession would not dispose of the case, or establish that the complainants have a right to the equitable relief for which they pray. There has been Congres sional legislation since 1872, the effect of which upon the assessments is. controlling. There were also acts of the legislative assembly of the District, which very forcibly imply a confirmation of the acts and assessments of the board of which the bill complains. If Congress or the legislative assembly had power to commit to the board the duty of making the improvements, and the power to prescribe that the assessments should be made in the .manner in which they were made, it had power to ratify the acts which it might have authorized. And the ratification, if "made, was equivalent to an original authority, according to the maxim, 'Omnis rdtihabitio retrotrahitur et mandato priori cequiparatur.' Under the Constitution Congress had power to exercise exclusive legislation in all cases whatsoever over the District, and this includes the. power of taxation. Cohen v. Virginia, 6 Wheat. 264. Congress may legislate within the District; respecting the people and property therein', as may the legislature of any State over any of its subordinate municipalities. It may therefore cure irregularitiés, and confirm proceedings which without the confirmation would be void, because unauthorized, provided such confirmation does not interfere with intervening rights."
It is then evident, speaking generally, both on principle and authority, that Congress had the power to pass the ratifying act of June 30,1906, and that that act bars, the plaintiff's right to recover, unless by the application of some exception this case is taken out of the operation of the general rule. And this brings us to consider the several propositions relied upon at bar to.establish that such is the case.
First. Whilst it is admitted that Congress had the power to levy tariff duties on goods coming into the United States from the Philippine Islands or coming into such islands from the United States after the ratification of the treaty, it is yet urged that as that body was without authority to delegate to the President the legislative power of prescribing a tariff ef duties, it hence could not by ratification make valid the exercise by the President of a legislative authority which could not have been delegated to him in the first instance. But the premise upon which this proposition rests presupposes that Congress in, dealing with the Philippine Islands may not, growing out of, the relation of those islands to the United States, delegate legislative authority to such ¿gencies as it may select, a proposition, which is not now open for discussion. Dorr v. United States, 195 U. S. 133.
Second. As the duties collected were illegal, it is insisted that for the purpose of testing .the validity of the act of Congress the fact of such collection must be put out of view, and the act ratifying the exaction must be treated as if it were solely an original exercise by Congress of the, .taxing power;' This being done, it is said, reduces the case to the inquiry, Had .Congress power, years after goods which were entitled .'to free entry had been brought into the Philippine Islands, to retroactively impose tariff duties upon the consummated act of bringing the' goods into that country? But the proposition begs the question for decision, by shutting out from view the potential fact that when the goods were brought into the Philippine Islands there was a tariff in existence under which duties were exacted in the name of the. United States. Indeed the contentipn goes further even than this, since it entirely disregards the important consideration that although the duties .were illegally exacted the illegality was not the result of an inherent want of power in' the United States to have authorized the imposition of the duties, but simply arose from the failure to- delegate to the official the authority essential to give immediate validity to his conduct in enforcing the payment of the duties., And when ' these misconceptions are borne, in-mind it results that the'.un-' soundness • of the proposition relied upon is demónstratéd by the applicátion of the elementary principle.,-of ratification to which we have' previously referred.'. -Moreover, -the'fallacy -which the proposition involves becomes yet more-obvipus when, it is observed that the contention cannot'even be formulated without misstating the nature of the act of Congress; in other . words,'without treating that act as retrospective/legislation enacting a tariff, when on its very face tbe act is but an exercise of the conceded power dependent upon the law- of agency to ratify an act done on behalf of the United States which the United States could have originally authorized.
. Third. It is urged that the ratifying statute cannot be given effect without violating the Fifth Amendment of the Constitution, since to give efficacy to the. act would deprive the claimants of their property without due process of-law, of would appropriate the same for public use without just compensation. This rests upon these two contentions: It is said that the money' paid to discharge the illegally exacted duties after payment, as before, "jüstly andiequitably belonged" to' the claimants, and that the. title thereto continued in them as a vested right of. property. It is consequently insisted .that the right to recover the money could not bé taken away without violating the Fifth Amendment, as stated. But here, again, the argument disregards. the fact that when the duties were illegally exacted in the name of the United States Congress possessed the power to have authorized their imposition in the mode in which they were' enforced, arid hence from the very moment of collection a right-in Congress to ratify the transaction, if it saw fit to do so, was engendered. In other words, as á necessary result of the power to ratify, it followed that the right to recover the duties in question Was subject to the exercise by Congress óf its undoubted power to ratify. To-hold to the contrary would be to say that whilst the unauthorized act of an officer done on behalf of the United-States was subject to ratification by the United States, yet if the officer acted without authority the act when performed annihilated the power to ratify; that is, that the very condition which engendered- the. power destroyed ifo
But if it be conceded that the claim to a return-of the moneys paid in discharge of the exacted duties was in a sense a vested right, it in principle, as we have already observed, would be but the character of right referred to by Kent in his Commentaries, where, in treating of the validity of statutes retroactively operating on certain -classes of rights, it is said (Vol. 2. pp. 415, 416):
"The legal rights affected in those cases by the statutes were deemed to have .been vested subject to the equity existing against them, and which the statutes recognized and enforced. Goshen v. Stonington, 4 Connecticut 209; Wilkinson v. Leland, 2 Peters, 627; Langdon v. Strong, 2 Vermont, 234; Watson v. Mercer, 8 Peters, 88; 3 Story's Comm. on the Constitution, 267."
Nor. does the mere fact that at the time the ratifying statute was enacted this action was pending for the recovery of the sums paid cause the statute to be repugnant to the Constitution. The mere commencement of the suit did not change the nature of the right. Hence again if it be conceded that the capacity to prosecute the pending suit -to judgment was in a sense a vested right-, certainly also the power of the United States to ratify was, to say the least, a right of as high a character. To arrogate to themselves the authority to divest the right of the United States to ratify is then in reason the assumption upon which the asserted right of the claimants to recover must rest.
Considering how' far the bringing of- actions would operate to deprive government of the power to enact .curative statutes which, if the actions had not been brought, would have been unquestionably valid, Cooley, in his Constitutional Limitations, says (7th ed., p. 543):
"Nor is it important, in any of the cases to which we have referred, that the legislative act,, which cures the irregularity, defect or want of original authority,' was passed after suit brought, in which such irregularity or defect became matter of importance. The bringing of suits vests in a party ho right to a particular decision; Bacon v. Callender, 6 Massachusetts, 303; Butler v. Palmer, 1 Hill, 324; Cowgill v. Long, 15 Illinois, 202; Miller v. Graham, 17 Ohio St. 1; State v. Sguires, 26 Iowa, 340; Patterson v. Philbrook, 9 Massachusetts; 151, and his case must be determined on the law- as it stand's, not when the suit was brought, but when the judgment is rendered. Watson v. Mercer, 8 Pet. 88; Mather v. Chapman, 6 Connecticut, 54; People v. Supervisors &c., 20 Michigan, 95; Satterlee v. Matthewson, 16 S. & R. 169, and 2 Pet. 380; Excelsior Mfg. Co. v. Keyser, 62 Mississippi, 155; Phenix Ins. Co. v. Pollard, 63 Mississippi, 641; McLane v. Bonn, 70 Iowa, 752, 30 N. W. Rep. 478; Johnson v. Richardson, 44 Ark. 365. . . ."
And the following cases, in various forms, illustrate the application of the principle: United States v. Morris, 10 Wheat. 246; Grim v. School Dist., 57 Pa. St. 433, 438; City of Chester v. Black, 132 Pa. St. 568; Price v. Huey, 22 Indiana, 18; Welch v. Wadsworth, 30 Connecticut, 149,158; Rich v. Flanders, 39 N. H. 310, 311; Iowa Railroad Land Co. v. Soper, 39 Iowa, 112, 119; Ferry v. Campbell, 110 Iowa, 290; Mills v. Geer, 111 Georgia, 275, 279, 287, 288.
Fourth. Aside, however, from principle and the general result of the adjudged cases, it is finally insisted that the want of power in Congress to ratify the collection of the duties in question under the • circumstances here disclosed conclusively results from the decision in.He Lima v. Bidwell, 182 U. S. 1. As- we have seen, that case concerned the validity of collections of duties in the port of New York on goods brought into the United States from Porto Rico, and whilst insisting on the legality of the duties, the Government at the same time urged that,' even if originally invalid, they had yet been ratified as the result of provisions .of .a specified act of Congress which had been passed after the suit to .recover the duties had been commenced. As that portion of the duties sued for which had bfeen collected after' ratification of the treaty were decided to be illegal, it followed that a decision as to the question of ratification was required. In passing upon the subject, after intimating doubt as to whether the act relied upon, as manifesting the intention of Congress to ratify, was intended to have that effect, it was remarked (p.. 199):
" It caii clearly have no retroactive effect as to moneys theretofore paid under protest, for which an action to recover back had. already been brought, As the action in this case was brought March 13, 1900, eleven days.before the act was passed, the right to recover the money sued for could not be taken away by a subsequent act of Congress. Plaintiffs sue in assumpsit for money which the collector has in his hands, justly and equitably belonging to them. To say that' Congress could by a subsequent act deprive them of the right to prosecute this action, would be beyond its power. In any event, it should not be interpreted so as to make it retroactive. Kennett's Petition, 24 N. H. 139; Alter's Appeal, 67 Pa. St. 341; Norman v. Heist, 5 W. & S. 171; Donovan v. Pitcher, 53 Alabama, 411; Palairet's Appeal 67 Pa. St. 479; State v. Warren, 28 Maryland, 338."
' Now, considering the language just quoted in connection with the doubt expressed as to the import of the alleged ratifying statute, it results that the reasoning employed stated.two considerations, first, the -want .of power in Congress to ratify after suit brought; and second, the duty of construing the statute relied upon so as not to produce ratification, in view of its ambiguity. As the question of construction was last stated and that question was declared to be "in any event" decisive, we think the observations made concerning the want of-power to ratify after suit brought must be regarded as not having been necessary to the decision rendered, and therefore must be treated as obiter. And this interpretation was, we think, applied in the cases, of Lincoln v. United States and Warner, Barnes & Co., v. United States, supra. In those cases, as we have said, one of the defenses insisted upon by the Government was a ratification alleged to have been operated by the act of Congress of July 1, 1902, which was passed after the bringing-of the actions to recover. It is patent on the face of the opinion announced on the original hearing that the decision was exclusively based upon the ground that the act of Congress was so ambiguous concerning the ratification relied upon that it should not be implied that such ratification was contemplated.' And it is to be observed that De Lima v. Bidwell was not over-Idoked, since that case was referred to in the course of the opinion. On the rehearing the case was argued, on questions submitted 'by the cotut, viz., .whether the act relied upon manifested the purpose to ratify, and if it did, whether Congress had power so to do.. In the opinion on the rehearing, while the court reiterated the view previously expressed, that the act could not be treated as ratifying the collection of the duties sought to be recovered because of its ambiguity in that regard, yet it.expressly recognized the power in Congress to ratify, and in effect declared that'as to those things to which the alleged ratifying act clearly applied ratification had resulted. This is so, since in the course of the opinion, in answering the argument 'that the alleged ratifying statute would be meaningless unless it was héld applicable to the particular duties in controversy, it was pointed out (p. 499) that there were duties which had been levied and collected other than those in controversy to which the act clearly applied, and " that question (as to them) was put at rest by this ratification." Further, in calling attention to the ambiguity in the ratifying- statute relied upon and the resulting doubt whether it embraced all duties, it was pointed out that the 'fact that actions were' pending at the time of the passage of the ratifying act lent cogency,to the view that' if Congress had intended by the ratification to affect them, it would have explicitly so declared. On this subject the court said (p. 498):
"This construction is favored by' the consideration that the suits had been begun when the act of July 1; 1902, was passed, and that, even if Congress could deprive plaintiffs of their .vested rights in process-of being asserted, Hamilton v. Dillin, 21 Wall. 73, still it is not to be presumed to do so on language which, literally taken, has a'narrower sense."
Certainly, this language, particularly in view of the reference made to Hamilton v. Dillin, is wholly incompatible with the conception that the observation as to pending actions made in De Lima v. Bidwell was to be taken as having settled the proposition that a power to ratify which otherwise obtained could not be exerted after suit brought.
Be this as'it may, however, as after deliberate consideration we are of opinion that the mere bringing óf this action did not deprive Congress of its power to ratify the collections made by its officers in the name' of the United States of the moneys sought to be recovered in this action, y we may not allow the remarks made in De Lima v. Bidwell under, the circumstances stated to-control our judgment!
There was much discussion at bar concerning whether the payments of the duties were voluntary. As it would seem that the circumstances surrounding these payments'were substantially like unto those existing in the Lincoln and Warner, Barnes & Co. cases, in which the opinions of the court made no reference to the question of voluntary, payment, we have concluded to pass-that question by, as our conclusion on the subject of ratification disposes of the controversy..
Reversed.
Mu. Justice Brewer and Mr. Justice Beckham dissent.
Mr. Justice Moody took no part in the decision of the cause.