The idea of tiny changes cumulated over many steps is an immensely powerful idea, capable of explaining an enormous range of things that would be otherwise inexplicable.

All life evolves by the differential survival of replicating entities.

We accept that people are irrational for good Darwinian reasons. But I don't think we should be so pessimistic as to think that therefore we're forever condemned to be irrational.

The less you think, the more you believe.

By being outside of nature, God is also outside of space and time.

The human psyche has two great sicknesses: the urge to carry vendetta across generations, and the tendency to fasten group labels on people rather than see them as individuals.

We are digital archives of the African Pliocene, even of Devonian seas; walking repositories of wisdom out of the old days. You could spend a lifetime reading in this ancient library and die unsated by the wonder of it.