I know that I am intelligent, because I know that I know nothing.

I knew I belonged to the public and to the world, not because I was talented or even beautiful, but because I had never belonged to anything or anyone else.

Man, alone, has the power to transform his thoughts into physical reality; man, alone, can dream and make his dreams come true.

Man is the only creature that refuses to be what he is.

Let us permit nature to have her way. She understands her business better than we do.