Every human life involves an unfathomable mystery, for man is the riddle of the universe, and the riddle of man in his endowment with personal capacities.

Atheism is a theoretical formulation of the discouraged life.

Great living starts with a picture, held in your imagination, of what you would like to do or be.

I hate war for its consequences, for the lies it lives on and propagates, for the undying hatreds it arouses.

Every great scientist becomes a great scientist because of the inner self-abnegation with which he stands before truth, saying: "Not my will, but thine, be done." What, then, does a man mean by saying, Science displaces religion, when in this deep sense science itself springs from religion?

I renounce war for its consequences, for the lies it lives on and propagates, for the undying hatred it arouses, for the dictatorships it puts in place of democracy, for the starvation that stalks after it. I renounce war, and never again, directly or indirectly, will I sanction or support another.

He is a poor patriot whose patriotism does not enable him to understand how all men everywhere feel about their altars and their hearthstones, their flag and their fatherland.