Indeed, the Constitution derives not the least portion of its claim upon our tender regard from the fact that it recognizes the eternal law of progress; and, while establishing a government whose stability should be as enduring as the principles upon which it is based, does not assume to declare that it has exhausted the possibilities of the future. Guarding against any and every impulse of popular passion, it nevertheless leaves scope for the necessary changes of time and circumstance, which may make the politic statesmanship of one period the exploded fallacy of the next. For of the science of politics it may be said, as in the glowing eulogy of Macaulay upon the philosophy of Bacon: 'It is a philosophy which never rests, which has never attained its end, which is never perfect. Its law is progress. A point which yesterday was invisible is its goal to-day, and will be its starting-post to-morrow.' Political science, indeed, is only another one of those 'illustrations of universal progress,' which the genius of Herbert Spenser has made familiar to our literature. And therefore it is that we cannot too much admire the sagacity of the patriots who framed our Constitution. It was a sagacity drawing its inspiration from all history, which taught, and teaches, that if progress is attempted to be checked, it will find vent in volcanic revolution. Reformation is the watchword of history: anarchy and destruction the fate of those nations which heed it not. Thus it was that the principle of amendment found its way into the Constitution of the United States--a principle so just that by it we are enabled in these bitter days to faithfully withstand the usurpation that seeks to justify itself by appealing to the right of revolution. For in the principle of amendment (as has heretofore been stated in this magazine) the right of revolution was at the same time recognized and exalted; and by it a means of war was made a means of peace, and so revolution was sought to be forestalled. Nothing but despotism itself would have disregarded this humane provision of the Constitution, and sought a remedy for alleged grievances that is only justified by despotism. What, then, is the principle of amendment in our Constitution, and what are its provisions? They are found in the fifth article, and read thus: '_The Congress, whenever two thirds of both Houses shall deem it necessary, shall propose amendments to this Constitution_, or, on the application of the legislatures of two thirds of the several States, shall call a convention for proposing amendments, which, in either case, _shall be valid to all intents and purposes, as part of this Constitution, when ratified by the legislatures of three fourths of the several States_, or by conventions in three fourths thereof, as the one or the other mode of ratification may be proposed by the Congress; provided, ... that no State, without its consent, shall be deprived of its equal suffrage in the Senate.'