War is only an invention, not a biological necessity.

In the modern world we have invented ways of speeding up invention, and people's lives change so fast that a person is born into one kind of world, grows up in another, and by the time his children are growing up, lives in still a different world

Injustice experienced in the flesh, in deeply wounded flesh, is the stuff out of which change explodes.

Sometimes, instead of helping people to advance, a discovery or an invention holds them back.

The capacity for friendship usually goes with highly developed civilizations. The ability to cultivate people differs by culture and class; but on the whole, educated people have more ways to make friends... . In England, for instance, you find everyone in your class has read the same books. Here, people grope for something in common-like a newly engaged girl who came to me and said, "It's absolutely wonderful! His uncle and my cousin were on the same football team.

All social change comes from the passion of individuals.

One characteristic of Americans is that they have no toleration at all of anybody putting up with anything. We believe that whatever is going wrong ought to be fixed.