Romans, nor their perfection, which made art so distinguishing an element of the old civilization. It was the spirit of the age, the absorption of the public mind, the great prominence which art had in the eyes of the people. Art was to the Greeks what tournaments and churches were to the men of the Middle Ages, what the Reformation was to Germany and England in the sixteenth century, what theories of political rights were to the era of the French Revolution, what mechanical inventions to abridge human labor are to us. The creation of a great statue was an era, an object of popular interest--the subject of universal comment. It kindled popular inspirations. It was the great form of progress in which that age rejoiced. Public benefactors erected temples, and lavished upon them the superfluous wealth of the State. And public benefactors, in turn, had statues erected to their memory by their grateful admirers. The genius of the age expressed itself in marble histories. And these histories stand in the mystery of absolute perfection--the glory and the characteristic of a great and peculiar people. [Sidenote: Principles of art.] [Sidenote: Devotion of the Greeks for Art.] Much has been written on those principles upon which art is founded, and great ingenuity displayed. But treatises on taste, on beauty, on grace, and other perceptions of intellectual pleasure, are not very satisfactory, and must be necessarily indefinite. In what does beauty consist? Do we arrive at any clearer conceptions of it by definitions? Whether beauty, the chief glory of the fine arts, consists in certain arrangements and proportions of the parts to a whole, or in the fitness of means to an end, or is dependent on associations which excite pleasure, or is a revelation of truth, or is an appeal to sensibilities, or is an imitation of Nature, or the realization of ideal excellence, it is difficult to settle and almost useless to inquire. "Metaphysics, mathematics, music, and philosophy have been called in to analyze, define, demonstrate, and generalize." [Footnote: Cleghorn, _Ancient and Modern Art_, vol. i. p. 67.] Great writers have written ingenious treatises, like Burke, Alison, and Stewart. Beauty, according to Plato, is the contemplation of mind; Leibnitz maintained it consists in perfection; Diderot referred beauty to the idea of relation; Blondel asserted it was harmonic proportions; Peter Leigh speaks of it as the music of the eye. Yet everybody understands what beauty is, and that it is derived from Nature, agreeable to the purest models which Nature presents. Such was the ideal of Phidias. Such was it to the minds of the Greeks, who united every advantage, physical and mental, for the perfection of art. Nor could art have been so wonderfully developed had it not been for the influence which the great poets, orators, dramatists, historians, and philosophers exercised on the inspiration of the artists. Phidias, being asked how he conceived the idea of his