[Richard Leakey is] a robust hero of a man, who actually lives up to the cliché, “a big man in every sense of the word.” Like other big men he is loved by many, feared by some, and not over-preoccupied with the judgments of any.

When you plant a fertile meme in my mind you literally parasitize my brain, turning it into a vehicle for the meme's propagation in just the way that a virus may parasitize the genetic mechanism of a host cell.

Blindness to suffering is an inherent consequence of natural selection. Nature is neither kind nor cruel but indifferent.

Even if not a single fossil has ever been found, the evidence from surviving animals would still overwhelmingly force the conclusion that Darwin was right.

No doubt soaring cathedrals, stirring music, moving stories and parables, help a bit. But by far the most important variable determining your religion is the accident of birth.

As my colleague, the physical chemist Peter Atkins, puts it, we must be equally agnostic about the theory that there is a teapot in orbrit around the planet Pluto. We can't disprove it. But that doesn't mean the theory that there is a teapot is on level terms with the theory that there isn't.

The odd thing about tradition is, the longer it's been going, the more people seem to take it seriously - as though sheer passage of time makes something which to begin with was just made up, turns it into what people believe as a fact.