All progress has resulted from people who took unpopular positions. All change is the result of a change in the contemporary state of mind. Don't be afraid of being out of tune with your environment, and above all pray God that you are not afraid to live, to live hard and fast. To my way of thinking it is not the years in your life but the life in your years that count in the long run. You'll have more fun, you'll do more and you'll get more, you'll give more satisfaction the more you know, the more you have worked, and the more you have lived. For yours is a great adventure at a stirring time in the annals of men.

What a man knows at fifty that he did not know at twenty is, for the most part, incommunicable. The laws, the aphorisms, the generalizations, the universal tru…

Unreason and anti-intellectualism abominate thought. Thinking implies disagreement; and disagreement implies nonconformity; and nonconformity implies heresy; a…

He who slings mud generally loses ground.

That's not it. That's not it at all. You always have a tendency to add. But one must be able to subtract too. It's not enough to integrate, you must also disin…

He [Aeschylus] was, first and last, the born fighter, to whom the consciousness of being matched against a great adversary suffices and who can dispense with s…

I've never regretted I was born too soon. I'm proud to be a child of the twentieth century. I'm satisfied to join its ranks on our side and fight for a new wor…