"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."

"Genius is one percent inspiration and ninety-nine percent perspiration."

"Until man duplicates a blade of grass, nature can laugh at his so-called scientific knowledge."

"Non-violence leads to the highest ethics, which is the goal of all evolution. Until we stop harming all other living beings, we are still savages."

"I have never seen a man who was afraid of a woman. I have seen men who were afraid of women's tongues."