In Birge Harrison's book on landscape painting, he tells a story of a young painter who came to him and told him he was quitting painting. For months this fellow hadn't turned out anything worth looking at, and he felt it wasn't worth trying anymore--he was throwing in the towel. Birge replies, "My dear fellow, I congratulate you. If your pictures had not already shown you the consummate painter, you have just given me the most inconvertible proof of the fact. You are simply soaked in temperament. Get down on your knees, my boy, and thank your lucky stars for that. If the pendulum has swung unconscionably low at present, you may rest assured that it will swing all the higher on the return stroke. The only man who never doubts himself, who plugs stolidly on to his goal, deviating neither to right nor to left, is the man who is born wholly without temperament. If he never falls to any depths of despair, neither does he rise to any heights of glory, and if he is neve...