The real problem you get with humour is that you only have so many kinds of jokes within you, and you mine that vein a lot. This isn't just common to me; it's anybody who's funny.

It is not true that the English invented cricket as a way of making all other human endeavors look interesting and lively; that was merely an unintended side effect... It is the only sport that incorporates meal breaks. It is the only sport that shares its name with an insect. It is the only sport in which spectators burn as many calories as players - more if they are moderately restless.

In my day, the principal concerns of university students were sex, smoking dope, rioting and learning. Learning was something you did only when the first three weren't available.

The upshot of all this is that we live in a universe whose age we can't quite compute, surrounded by stars whose distances we don't altogether know, filled with matter we can't identify, operating in conformance with physical laws whose properties we don’t truly understand.

Disassemble the cells of a sponge (by passing them through a sieve, for instance), then dump them into a solution, and they will find their way back together and build themselves into a sponge again. You can do this to them over and over, and they will doggedly reassemble because, like you and me and every other living thing, they have one overwhelming impulse: to continue to be.

There'd never been a more advantageous time to be a criminal in America than during the 13 years of Prohibition. At a stroke, the American government closed down the fifth largest industry in the United States - alcohol production - and just handed it to criminals - a pretty remarkable thing to do.

Taxonomy is described sometimes as a science and sometimes as an art, but really it’s a battleground.