"The mind can do anything it wants to do."

"I owe my success to the fact that I never had a clock in my workroom. Seventy-five of us worked twenty hours every day and slept only four hours — and thrived on it."

"I am not a vegetarian. I eat meat, but I don't eat much meat. I eat very little meat."

"I have friends in the other world. I have had very pleasant conversations with them. I am rather unorthodox in this matter."

"I don't think there is any such thing as an immortal soul. I think that the soul is just a function of the brain, and when the brain dies, the soul dies."