The discovery of agriculture was the first big step toward a civilized life.

The proper balance between individual liberty and central authority is a very ancient problem.

In a tribal organization, even in time of peace, service to tribe or state predominates over all self seeking; in war, service for the tribe or state becomes supreme, and personal liberty is suspended.

Under no stretch of imagination can war be regarded as an ethical process; yet war, force, terror, and propaganda were the evolutionary means employed to weld the German people into a tribal whole.

Man is by nature competitive, combative, ambitious, jealous, envious, and vengeful.

Whichever theory we adopt to give a rational explanation of human existence, that theory must take into account and explain the mental nature we see at work in all modern communities.