You will never stub your toe standing still. The faster you go, the more chance there is of stubbing your toe, but the more chance you have of getting somewhere.

The person who doesn't know something can't be done will often find a way to go ahead and do it.

Modern psychology teaches that experience is not merely the best teacher, but the only possible teacher.. There is no war between theory and practice. The most valuable experience demands both, and the theory should supplement the practice and not precede it.

Bankers regard research as most dangerous a thing that makes banking hazardous due to the rapid changes it brings about in industry.

The only time you mustn't fail is the last time you try.

here is a great difference between knowing a thing and understanding it. You can know a lot and not really understand anything.

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.