Sex is a sideshow in the world of the animal, for the dominant color of that world is fear.

Aggressiveness is the principal guarantor of survival.

Human war has been the most successful of our cultural traditions.

What could not be denied was that in vast segments of the animal world natural selection of the most qualified individuals took place not by competition for females but by competition for space.

We are born of risen apes, not fallen angels.

Is it possible that the environmental severity of the 1930s induced-particularly in the most aware, alert, and compassionate of [British] men-a morality which makes no sense today?

A human being is a problem in search of a solution.