No society has ever yet been able to handle the temptations of technology to mastery, to waste, to exuberance, to exploration and exploitation... We have to learn to cherish this earth and cherish it as something that's fragile, that's only one, it's all we have... We have to use our scientific knowledge to correct the dangers that have come from science and technology.

Wonder is very important, because if we never wondered, we would never get to the point of asking questions. Yet wonder may lead people to write poetry or to paint pictures or to pray, as well as to ask the kinds of questions about the world and themselves that can be answered by science.

Contentment can be bought at a price that one can not possibly pay.

Motherhood is a biological fact, while fatherhood is a social invention.

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.

I don't consider my marriages as failures! It's idiotic to assume that because a marriage ends, it's failed.

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