“People always get tired of one another. I grow tired of myself whenever I am left alone for ten minutes, and I am certain that I am fonder of myself than anyone can be of another person.”

“If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.”

”A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.”

“Imagination is the beginning of creation. You imagine what you desire, you will what you imagine and at last you create what you will.”

“The moment we want to believe something, we suddenly see all the arguments for it, and become blind to the arguments against it.”

“The only man I know who behaves sensibly is my tailor; he takes my measurements anew each time he sees me. The rest go on with their old measurements and expect me to fit them.”