It is every man's obligation to put back into the world at least the equivalent of what he takes out of it.

It is strange to be known so universally and yet to be so lonely.

I do not play games. There is not time for it. When I get through with work, I don't want anything that requires the working of the mind.

Only a life lived for others is a life worth while . I have no special gift. I am only passionately curious . I want to know God's thoughts... all the rest are details. Joy in looking and comprehending is nature's most beautiful gift. It's not that I'm so smart , it's just that I stay with problems longer.

Any government is evil if it carries within it the tendency to deteriorate into Tyranny. The danger of such deterioration is more acute in a country in which the government has authority not only over the armed forces but also over every channel of education and information.

Love is a better teacher than duty.

It is harder to crack prejudice than an atom.