Thinking is hard work. That's why there are so few people doing it.

To lift farm drudgery off flesh and blood and lay it on steel and motors has been my most constant ambition

People see successes that men have made and somehow they appear to be easy. But that is a world away from the facts. It is failure that is easy. Success is always hard. A man can fail easily; he can succeed only by paying out all that he has and is.

Money doesn't change men, it merely unmasks them. If a man is naturally selfish or arrogant or greedy, the money brings that out, that's all.

Thinking is the hardest work we do.

The air is full of ideas. They are knocking you in the head all the time. You only have to know what you want, then forget it, and go about your business. Suddenly, the idea will come through. It was there all the time.

To me this is the most beautiful, the most satisfactory from a scientific standpoint, the most logical theory of life. For thirty years I have leaned toward the theory of Reincarnation. It seems a most reasonable philosophy and explains many things.