It is good to know our universe. What is new is only new to us.

It may be that religion is dead, and if it is, we had better know it and set ourselves to try to discover other sources of moral strength before it is too late.

Because psychologists have been able to discover, exactly as in a slow-motion picture, the way the human creature acquires knowledge and habits, the normal child has been vastly helped by what the retarded have taught us.

It is love itself that is important -- the ability to love, no matter whom you love. For when you can no longer love anyone, you are no longer a living person. The heart dies if it loses the capacity to love.

Somehow I had learned from Thoreau, who doubtless learned it from Confucius, that if a man comes to do his own good for you, then must you flee that man and save yourself

For Nature is not unjust. She does not steal into the womb and like an evil fairy give her good gifts secretly to men and deny them to women. Men and women are born free and equal in ability and brain. The injustice begins after birth.

Praise out of season, or tactlessly bestowed, can freeze the heart as much as blame.