War is an old, old plant on this earth, and a natural history of it would have to tell us under what soil conditions it grows, where it plays havoc, and how it is eliminated.

No one culture has ever developed all human potentialities; it has always selected certain capacities, mental and emotional and moral, and stifled others. Each culture is a system of values which may well complement the values in another.

War is, we have been forced to admit, even in the face of its huge place in our civilization, an asocial trait.

Culture is not a biologically transmitted complex

I gambled on having the strength to live two lives, one for myself and one for the world.

The crucial differences which distinguish human societies and human beings are not biological. They are cultural.

We do not see the lens through which we look.