A human being fashions his consequences as surely as he fashions his goods or his dwelling. Nothing that he says, thinks or does is without consequences.

More and more, the choice for the world's people is between becoming world warriors or world citizens.

The sense of paralysis proceeds not so much out of the mammoth size of the problem but out of the puniness of the purpose.

War is an invention of the human mind. The human mind can invent peace with justice.

My reason nourishes my faith and my faith my reason.

Laughter is inner jogging.

To be able to rise from the earth; to be able, from a station in outer space, to see the relationship of the planet earth to other planets; to be able to contemplate the billions of factors in precise and beautiful combination that make human existence possible; to be able to dwell on an encounter of the human brain and spirit with the universe