Defeat is not the worst of failures. Not to have tried is the true failure.

Art does not, like science, set forth a permanent order of nature, the enduring skeleton of law. Two factors primarily determine its works: one is the idea in the mind of the artist, the other is his power of expression; and both these factors are extremely variable.

Seasonal changes, as it were, take place in history, when there is practically an almost universal death, a falling of the foliage of the tree of life. Such were the intervals between the ancient and mediaeval time, the mediaeval and the modern.