Humanity looks to me like a magnificent beginning but not the final word.

The purpose of thinking about the future is not to predict it but to raise people's hopes.

It has become part of the accepted wisdom to say that the twentieth century was the century of physics and the twenty-first century will be the century of biology.

Things are always more complicated than most people believe.

The science window gives you a view of the world, and the religion window gives you a totally different view. You can't look at both of them at the same time, but they're both true.

The whole point of science is that most of it is uncertain. That's why science is exciting--because we don't know. Science is all about things we don't understand. The public, of course, imagines science is just a set of facts. But it's not. Science is a process of exploring, which is always partial. We explore, and we find out things that we understand. We find out things we thought we understood were wrong. That's how it makes progress.

Science and religion are, of course, two different ways of looking at the universe; and it's the same universe with two different windows.