The world of science lives fairly comfortably with paradox. We know that light is a wave, and also that light is a particle. The discoveries made in the infinitely small world of particle physics indicate randomness and chance, and I do not find it any more difficult to live with the paradox of a universe of randomness and chance and a universe of pattern and purpose than I do with light as a wave and light as a particle. Living with contradiction is nothing new to the human being.

The best way to guide children without coercion is to be ourselves.

Life is not easy and comfortable, with nothing ever going wrong as long as you buy the right product. It's not true that if you have the right insurance everything is going to be fine. That's not what it's really like. Terrible things happen. And those are the things we learn from.

When I look at the galaxies on a clear night - when I look at the incredible brilliance of creation, and think that this is what God is like, then instead of feeling intimidated and diminished by it, I am enlarged . . . I rejoice that I am a part of it.

You learn to write by doing it.

Almost all the joyful things of life are outside the measure of IQ tests.

Sometimes when we have to speak suddenly we come closer to the truth than when we have time to think.