It is a waste of energy to be angry with a man who behaves badly, just as it is to be angry with a car that won't go.

The degree of one's emotions varies inversely with one's knowledge of the facts - the less you know the hotter you get.

Continuity of purpose is one of the most essential ingredients of happiness in the long run, and for most men that comes chiefly through their work.

The human race may well become extinct before the end of the century.

I believe four ingredients are necessary for happiness: health, warm personal relations, sufficient means to keep you from want, and successful work.

To acquire immunity to eloquence is of the utmost importance to the citizens of a democracy.

Marriage is for women the commonest mode of livelihood, and the total amount of undesired sex endured by women is probably greater in marriage than in prostitution.