He who knows no hardships will know no hardihood. He who faces no calamity will need no courage. Mysterious though it is, the characteristics in human nature which we love best grow in a soil with a strong mixture of troubles.

Money is a miraculous thing. It is your personal energy reduced to a portable form and endowed with power you yourself do not possess. It can go where you cannot go; speak languages you cannot speak; lift burdens you cannot touch with your fingers; save lives with which you cannot deal directly.

While each of us ... has depressed hours, none of us needs to be a depressed person.

Atheism is a theoretical formulation of the discouraged life.

Every human life involves an unfathomable mystery, for man is the riddle of the universe, and the riddle of man in his endowment with personal capacities.

We must take the abiding spiritual values which inhere in the deep experiences of religion in all ages and give them new expression in terms of the framework which our new knowledge gives us. Science forces religion to deal with new ideas in the theoretical realm and new forces in the practical realm.

All altruism springs from putting yourself in the other person's place.