"The key to living a moral life is this: Do nothing in private that you would be ashamed to discuss openly with your mother."

"The man who is a pessimist before forty-eight knows too much; the man who is an optimist after forty-eight knows too little."

"The man who is not willing to take a chance will never get anywhere."

"I don’t know as I want a man who is too smart."

"The power of the mind is the greatest power in the world."