I thought I better warn you that I am not one of those politically correct comedians, but it turns out that also I'm not really that racist, homophobic or woman hating either, so you might not notice

The worst, the most difficult thing I think is that the more you become intrigued by science and the information is out there, the more you are aware of the paucity of your own knowledge.

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.

We very quickly forget about the wonderful things we've got. People lose their excitement because there's too much. Basically we're experiencing nothing, because everything is available to us.

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 have a very vibrant imposter syndrome that goes on throughout most of my life, but nothing more than when someone has to put a hat on me or some kind of sash and go, 'We're giving you this certificate.'

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