"Wherever you may find the inventor, you may give him wealth or you may take from him all that he has; and he will go on inventing. He can no more help inventing than he can help thinking or breathing."

"The inventor... looks upon the world and is not contented with things as they are. He wants to improve whatever he sees, he wants to benefit the world; he is haunted by an idea. The spirit of inventio…"

"We should try to prevent the propagation of the unfit."

"The most important thing for a man to do is to be true to himself."

"Don't keep forever on the public road, going only where others have gone. Leave the beaten track occasionally and dive into the woods. Every time you do so you will be certain to find something that y…"