Caution is the confidential agent of selfishness.

In selfish men caution is as secure an armour for their foes as for themselves.

We propose this with great caution, ... The evidence, after all, only applies strongly to insects. Human altruism and tight-knit societies may well have evolved differently. But if it is true, it would help us understand the group aggression and warfare so widespread today. Those who study human biology and behavior should take a new look at this possibility.

The question of armaments, whether on land or sea, is the most immediately and intensely practical question connected with the future fortunes of nations and of mankind.

The awakening of the people of China to the possibilities under free government is the most significant, if not the most momentous, event of our generation.

My dream of politics all my life has been that it is the common business, that it is something we owe to each other to understand and discuss with absolute frankness.