I wonder whether any other generation has seen such astounding revolutions of data and values as those through which we have lived. Scarcely anything material or established which I was brought up to believe was permanent and vital, has lasted. Everything I was sure or taught to be sure was impossible, has happened.

You must sleep sometime between lunch and dinner, and no halfway measures. Take off your clothes and get into bed. That's what I always do.

Although always prepared for martyrdom, I preferred that it should be postponed.

We shall not flag nor fail. We shall go on to the end.

Your greatest fears are created by your imagination. Don't give in to them.

Success in life is the ability to move from one mistake to another without loosing enthusiasm.

Nothing makes a man more reverent than a library.