The swifter the passage is, the more vitality, as a rule, will there be in the brushwork. The reason is, that in such a case the artist is sure of himself. The feeling in his mind is so clearly comprehended; he so thoroughly feels what he wishes to express, and is so sure of the way to render it, that there is no hesitation or sign of fumbling in the result. It has grown freely and naturally and the result gives us that keen and direct pleasure that we derive from what is brimful of life.