Our western science is a child of moral virtues; and it must now become the father of further moral virtues if its extraordinary material triumphs in our time are not to bring human history to an abrupt, unpleasant and discreditable end.

Of the twenty or so civilizations known to modern Western historians, all except our own appear to be dead or moribund, and, when we diagnose each case... we invariably find that the cause of death has been either War or Class or some combination of the two.

Nothing fails like success when you rely on it too much.

A city that outdistances man's walking powers is a trap for man.

There is no such thing as gratitude in international politics.

The world's greatest need . . . is mutual confidence. No human being ever knows all the secrets of another's heart. Yet there is enough confidence between mother and child, husband and wife, buyer and seller . . . to make social life a practical possibility. Confidence may be risky, but it is nothing like so risky as mistrust.

Religion holds the solution to all problems of human relationship, whether they are between parents and children or nation and nation. Sooner or later, man has always had to decide whether he worships his own power or the power of God.