A very long time ago there lived, in a poor village, a joiner, who was a philosopher, as all my heroes are in their way. James worked from morning till night with his two strong arms, but his brain was not idle for all that. He was fond of reviewing his actions, their causes, and their effects. He sometimes said to himself, "With my hatchet, my saw, and my hammer, I can make only coarse furniture, and can only get the pay for such. If I only had a plane, I should please my customers more, and they would pay me more. It is quite just; I can only expect services proportioned to those which I render myself. Yes! I am resolved, I will make myself a plane."