History is a vast early warning system.

I cannot affirm God if I fail to affirm man. Therefore, I affirm both. Without a belief in human unity I am hungry and incomplete. Human unity is the fulfillment of diversity. It is the harmony of opposites. It is a many-stranded texture, with color and depth.

Hearty laughter is a good way to jog internally without having to go outdoors.

If there is a conflict between the easy drift of prosperity and the ordeal of peace, the ordeal of peace comes first.

Humanity today is not safe in the presence of humanity. The old cannibalism has given way to anonymous action in which the killer and the killed do not know each other, and in which,indeed, the very fact of mass death has the effect of making mass killing less reprehensible than the death of a single individual. In short, we have evolved in every respect except our ability to protect ourselves against human intelligence. Our knowledge is vast but does not embrace the workings of peace.

The growth of the human mind is still high adventure, in many ways the highest adventure on earth.

Death is not the greatest loss in life. The greatest loss is what dies inside us while we live.