Ethics is in origin the art of recommending to others the sacrifices required for cooperation with oneself.

There is no difference between someone who eats too little and sees Heaven and someone who drinks too much and sees snakes.

America... where law and custom alike are based upon the dreams of spinsters...

This has been my life. I have found it worth living, and would gladly live it again if the second chance were offered me.

Next to worry probably one of the most potent causes of unhappiness is envy.

To the young I should offer two maxims: Don't accept superficial solutions of difficult problems. It is better to do a little good than much harm. I should not offer anything more specific; every young person should decide on his or her own credo.

Why repeat the old errors, if there are so many new errors to commit?