Gravity is not a version of the truth. It is the truth. Anyone who doubts it is invited to jump out a tenth-storey window.

I find many of answers in the spiritual realm. That in no way compromises my ability to think rigorously as a scientist.

It's a horrible idea that God, this paragon of wisdom and knowledge, power, couldn't think of a better way to forgive us our sins than to come down to Earth in his alter ego as his son and have himself hideously tortured and executed so that he could forgive himself.

There is something infantile in the presumption that somebody else has a responsibility to give your life meaning and point… The truly adult view, by contrast, is that our life is as meaningful, as full and as wonderful as we choose to make it.

There is enough information capacity in a single human cell to store the Encyclopedia Britannica, all 30 volumes of it, three or four times over.

The truth is more magical - in the best and most exciting sense of the word - than any myth or made-up mystery or miracle. Science has its own magic: the magic of reality.

I don't understand why so many people who are sophisticated in science go on believing in God. I wish I did.