God is subtle, but He is not malicious. I cannot believe that God plays dice with the world.

The hardest thing in the world to understand is the income tax.

Knowledge of what is does not open the door directly to what should be.

During the last century, and part of the one before, it was widely held that there was an unreconcilable conflict between knowledge and belief.

Every kind of peaceful cooperation among men is primarily based on mutual trust and only secondarily on institutions such as courts of justice and police.

Try not to become a man of success but rather try to become a man of value.

All that is valuable in human society depends upon the opportunity for development accorded the individual.

When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more to me than my talent for absorbing positive knowledge.

At the same time, as social beings, we are moved in the relations with our fellow beings by such feelings as sympathy, pride, hate, need for power, pity, and so on.

Love is a better teacher than duty.