Religions are not imaginative, not poetic, not soulful. On the contrary, they are parochial, small-minded, niggardly with the human imagination, precisely where science is generous.

In our prehistoric past, we would have lived in extended families, surrounded by kin whose interests we might have wanted to promote because they shared our genes. Now we live in big cities. We are not among kin nor people who will ever reciprocate our good deeds. It doesn't matter. Just as people engaged in sex with contraception are not aware of being motivated by a drive to have babies, it doesn't cross our mind that the reason for do-gooding is based in the fact that our primitive ancestors lived in small groups.

My passion is for scientific truth. I don't much care about good and evil. ... I care about what's true.

A retaliator behaves like a hawk when he is attacked by a hawk, and like a dove when he meets a dove. When he meets another retaliator he plays like a dove. A retaliator is a conditional strategist. His behaviour depends on the behaviour of his opponent.

Science, as opposed to technology, does violence to common sense.

The universe doesn't owe you a sense of hope

The so-called sophisticated theologians, especially ones who are very nice, like Rowan Williams and Jonathan Sacks, you sometimes don't quite know where you are with them. You feel that when you attack them, you're attacking a wet sponge.