Bottom up thinkers try to start from experience and move from experience to understanding. They don't start with certain general principles they think beforehand are likely to be true; they just hope to find out what reality is like.

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.

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.

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

God didn't produce a ready-made world. The Creator has done something cleverer than this, making a world able to make itself.

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.