In the eye, there is a type of junk that accumulates in the back of the retina that eventually causes us to go blind. It's called age-related macular degeneration.

If you look at winners of the Nobel Prize in biology, you'll find a fair smattering of people who don't know how to work a pipette.

Accept the difficulty of what you cannot yet change. But do not accept the impossibility of ever changing it.

Wikipedia was a big help for science, especially science communication, and it shows no sign of diminishing in importance.

Some things tend not to work so well for science - things that rely on substantial written contributions by key experts are a case in point - but even there I tend to keep an open mind, because it may just be a case of finding the right formula.

Ageing is, simply and clearly, the accumulation of damage in the body. That's all that ageing is.

Most scientists will get serious media exposure about twice in their entire career. And they'll get that because they've actually done an experiment that was interesting.