My definition of an educated man is the fellow who knows the right thing to do at the time it has to be done. You can be sincere and still be stupid.

I often say that research is a way of finding out what you are going to do when you can't keep on doing what you are doing now.

Do not bring me your successes; they weaken me. Bring me your problems; they strengthen me.

I think that the greatest education in the world is the education which helps one to be able to do the right things at the time it has to be done.

There has never been any 30-hour week for men who had anything to do.

The price of progress is trouble.

Every honest researcher I know admits he's just a professional amateur. He's doing whatever he's doing for the first time. That makes him an amateur. He has sense enough to know that he's going to have a lot of trouble, so that makes him a professional.