A man's life is interesting primarily when he has failed - I well know. For it's a sign that he tried to surpass himself.

A man who waits to believe in action before acting is anything you like, but he's not a man of action. You must act as you breathe.

When a man asks himself what is meant by action he proves that he isn't a man of action.

Aman who waits to believe in action before acting is anything you like, but he’s not a man of action. It is as if a tennis player before returning a ball stopped to think about his views of the physical and mental advantages of tennis. You must act as you breathe.

In order to act, you must be somewhat insane. A reasonably sensible man is satisfied with thinking.

I don't know whether war is an interlude during peace, or peace an interlude during war.