The indifference, callousness and contempt that so many people exhibit toward animals is evil first because it results in great suffering in animals, and second because it results in an incalculably great impoverishment of the human spirit.

I was very pleased with your kind letter. Until now I never dreamed of being something like a hero. But since you've given me the nomination I feel that I am one.

God does not play dice.

Man usually avoids attributing cleverness to somebody else unless it is an enemy.

Have the courage to take your own thoughts seriously, for they will shape you.

Only strong characters can resist the temptation of superficial analysis.

Those who have an interest in keeping the machinery of war going will stop at nothing to make public opinion subservient to their murderous ends.