Well, there are many religions, but I suppose they all worship the same God.

When the intensity of emotional conviction subsides, a man who is in the habit of reasoning will search for logical grounds in favour of the belief which he finds in himself.

Do not feel envious of the happiness of those who live in a fool's paradise, for only a fool will think that is happiness.

No man can be a good teacher unless he has feelings of warm affection toward his pupils and a genuine desire to impart to them what he believes to be of value.

The main things which seem to me important on their own account, and not merely as means to other things, are knowledge, art, instinctive happiness, and relations of friendship or affection.

War grows out of ordinary human nature.

Science has made unrestricted national sovereignty incompatible with human survival. The only possibilities are now world government or death.