This is not the place for insistence upon all that Greece has accomplished in the domains of pure thought, philosophy, and science, nor even for calling attention to her literature. We are writing the history of the arts and not that of letters, a history which we wish to conduct to the point where Müller left off, to the commencement of those centuries which are called the Middle Ages; and Greece will occupy by far the most important place in our work. We shall endeavour to bring the same care and conscience, the same striving after accuracy, into every division of our history; but the monuments of Greece will be examined and described in much greater detail than those of Egypt and Assyria, or even those of Etruria and Latium. It was our love for Greece that drove us to this undertaking; we desire and hope to make her life better known, to show a side of it which is not to be found in the works of her great writers, to give to our readers new and better reasons for loving and admiring her than they have had before. A combination of circumstances that is unique in the history of the world gave to the contemporaries of Pericles and Alexander the power of approaching more nearly to perfection, in their works of art, than men of any other race or any other epoch. In no other place or time have ideas been so clearly and completely interpreted by form; in no other place or time have the intellectual qualities been so closely wedded to a strong love for beauty and a keen sensibility to it. It results from this that the works of the Greek artists, mutilated by time and accident as they are, serve as models and teachers for our painters and sculptors, a _rôle_ which they will continue to fill until the end of time. They form a school, not, as some have thought, to enable us to dispense with nature, the indispensable and eternal master, but to incite to such an ardent and intelligent study of her beauties, as may lead to the creation of great works, works capable, like those of the Greeks, of giving visible expression to the highest thoughts.