Once a man ceases to be of service to his neighbor, he begins to be a burden to him.

Democracy cannot survive where there is such uniformity that everyone wears exactly the same intellectual uniform or point of view. Democracy implies diversity of outlook, a variety of points of view on politics, economics, and world affairs. Hence the educational ideal is not uniformity but unity, for unity allows diversity of points of view regarding the good means to a good end.

Love is the key to the mystery. Love by its very nature is not selfish, but generous. It seeks not its own, but the good of others. The measure of love is not the pleasure it gives-that is the way the world judges it-but the joy and peace it can purchase for others.

Jealousy is the tribute which mediocrity pays to genius.

Do mathematics have a relation to reality or are they only a mathematical symbol?

If we had intellectual vigour enough to ascend from effects to causes, we would explain political, economical and social phenomena less by credit sheets, balance of trade and reparations than by our attitude towards God.

The pacifist thinks that the alternative to war is peace; it is not. Sometimes the alternative is oppression. Sometimes certain God-given rights and liberties can be preserved only by resistance to that which would destroy them. And to defend certain basic God-given rights and liberties is not immoral but righteous.