Homeopaths do not have a physical brain, but merely 'skull water' with the memory of brains.

Once you start looking at the world rationally, it becomes much more exciting.

One idea I explore in my stand-up show is whether, if you try looking at the universe rationally and avoid coping mechanisms like mysticism or religion, you can still be happy knowing you are going to die after a brief time on this spinning ball.

You always need to find the balance in the science, but the balance to talking about evolutionary theory is not to talk about creationism, that's not a balance, that's misleading and it's just wrong.

Not since Jimmy Carr have I seen a cold computer programme on stage generate so much laughter.

I have a theory that evolutionary biologists are more vain than particle physicists.

I am not man or beast; I am bibliosexual, and a seedy bibliosexual who haunts the streets, laden with carrier bags held by blistered fingers, stooping under the weight of the rucksack that has brought on sciatica and a Dickensian demeanour.