The world as we see it is only the world as we see it. Others may see it differently.

Infinite striving to be the best is man's duty; It is its own reward. Everything else is in god's hands. It's not that I'm so smart, it's just that I stay with problems longer.

... the desire for truth must take precedence over all other desires.

I do not believe that civilization will be wiped out in a war fought with the atomic bomb. Perhaps two-thirds of the people of the earth will be killed.

As long as there are sovereign nations possessing great power, war is inevitable.

Most teachers waste their time by asking question which are intended to discover what a pupil does not know whereas the true art of questioning has for its purpose to discover what pupils knows or is capable of knowing.

It is also a natural thing for a serious young man that he should form for himself as precise an idea as possible of the goal of his desires.