The gravity with which this apparently trifling anecdote is given us from antiquity evidently proves that it was one of the household tales of old Greece. It did not seem absurd in those times, when Art was recognized as a great Unity, an elaborate system of infinite language founded on the simplest elements of Life, and in its grandest and widest flowings bearing ever in its bosom, like a great river, the memory of the little weeping Naiad far up among the mountains with her "impoverished urn." And so every great national Art, growing up naturally out of the necessities of an earnest people, expressing the grand motives of their Life, as that of the Greeks and the Egyptians and the mediaeval nations of Europe, is founded on the simplest laws. So long as these laws are obeyed in simplicity and Love, Art is good and true; so long as it remembers the purity and earnestness of its childhood, the strength that is ordained out of the mouth of babes is present in all its expressions; but when it spreads itself abroad in the fens and marshes of humanity, it has lost the purity of its aim, the singleness and unity of its action,--it becomes stagnant, and sleeps in the Death of Idleness. Therefore I believe in the expressiveness of single lines as symbols of the grandest phases of human Life. And when one studies Greek Art, the whole motive of it seems so childlike and so simple that the impulse to seek for that little Naiad which is the fountain and source of it all is irresistible. Look at the line I have traced, and see if there is not a curious humanity about it. It is impossible to produce it with a wanton flourish of the pencil, as I have done in that wavy, licentious curve, which Hogarth, in his quaint "Analysis of Beauty," assumes as the line of true Grace; nor yet are its infinite motions governed by any cold mathematical laws. In it is the earnest and deliberate labor of Love. There are thought and tenderness in every instant of it; but this thought is grave and almost solemn, and this tenderness is chastened and purified by wise reserve. Measure it by time, and you will find it no momentary delight, no voluptuous excess which comes and goes in a breath; but there is a whole cycle of deep human feeling in it. It is the serene joy of a nation, and not the passionate impulse of a man. Observe, from beginning to end, its intention is to give expression by the serpentine line to that sentiment of beautiful Life which was the worship of the Greeks; but they did not toss it off, like a wine-cup at a feast. They prolonged it through all the varied emotions of a lifetime with exquisite art, making it the path of their education in childhood and of their wider experience as men. All the impulses of humanity they bent to a kindly parallelism with it. This is that famous principle of Variety in Unity which St. Augustine and hosts of other philosophers considered the true Ideal of Beauty. Start with this line from the top