I very much enjoyed my career in science. I didn't leave science because I was disillusioned, but felt I'd done my bit for it after about twenty-five years.

After all, the universe required ten billion years of evolution before life was even possible; the evolution of the stars and the evolving of new chemical elements in the nuclear furnaces of the stars were indispensable prerequisites for the generation of life.

Of course, nobody would deny the importance of human beings for theological thinking, but the time span of history that theologians think about is a few thousand years of human culture rather than the fifteen billion years of the history of the universe.

I need the binocular approach of science and religion if I am to do any sort of justice to the deep and rich reality of the world in which we live.

Mathematics is the abstract key which turns the lock of the physical universe.

If the experience of science teaches anything, it's that the world is very strange and surprising. The many revolutions in science have certainly shown that.

Hope is much more than a mood. It involves a commitment to action.... What we hope for should be what we are prepared to work for...as far as that power lies in us.