There are plenty of problems in the world, many of them interconnected. But there is no problem which compares with this central, universal problem of saving the human race from extinction.

The world will never have lasting peace so long as men reserve for war the finest human qualities. Peace, no less than war, requires idealism and self-sacrifice and a righteous and dynamic faith.

I wouldn't attach too much importance to these student riots. I remember when I was a student at the Sorbonne in Paris, I used to go out and riot occasionally.

If you are scared to go to the brink, you are lost

The world will never have lasting peace so long as men reserve for war the finest human qualities. Peace, no less than war, requires idealism and self-sacrifice and a righteous and dynamic faith.

A man's accomplishments in life are the cumulative effect of his attention to detail.