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

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.

Science is very cross-generational; you're not just aiming it at twentysomethings, or eightysomethings. Every town's got a really broad selection of people and age groups interested in science.

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.

I'm glad the universe is pointless. It means if I get to the end of my life, the universe can't turn to me and go, 'What have you been doing, you idiot? That's not the point!

Wherever you are on Earth, there is more life present than in the rest of the known universe.

I want to create shows which are interesting. I hope that some people are excited by some of the ideas.