One should guard against preaching to young people success in the customary form as the main aim in life. The most important motive for work in school and in life is pleasure in work, pleasure in its result, and the knowledge of the value of the result to the community.

If we have the courage to decide ourselves for peace we will have peace.

It is our American habit if we find the foundations of our educational structure unsatisfactory to add another story or wing.

All conditions and all circumstances in our lives are a result of a certain level of thinking. If we want to change the conditions and circumstances, we have to change the level of thinking that is responsible for it.

A desk, some pads, a pencil, and a large basket -- to hold all of mu mistakes.

Intuitive powers played a central role in my scientific work, not wild speculation, yet a valued resource when no other approach was available.

When I have one week to solve a seemingly impossible problem, I spend six days defining the problem. Then, the solution becomes obvious.