I loved the idea that biology was logical.

It was like stepping on to an escalator; I could do anything. I was just made for science.

The idea that ageing was subject to control was completely unexpected.

You would think that UV just causes mutations, but it doesn't, you need a gene to be active for it.

Life's too short to not be around nice people.

I eat some fruit every day, but not too much and almost no processed food. I stay away from sweets, except 80 per cent chocolate.

In principle, if you understood the mechanisms of keeping things repaired, you could keep things going indefinitely.

Imagine that: If you could change one of the genes in an experiment, an aging gene, maybe you could slow down aging and extend lifespan.

I have always gotten a thrill, a kick, from learning new things.

Age is the single largest risk factor for an enormous number of diseases. So if you can essentially postpone aging, then you can have beneficial effects on a whole wide range of disease.

Maybe one day we will be able to take a pill that keeps us young and healthy much longer. I believe in my heart that this will happen.

People are almost always better than their neighbors think they are.

Lily, the next time you tell me you don't know what to do with family. Because you know exactly. It's about loyalty and kindness and unconditional love, and you are more than capable of all that.

Living life is the greatest grace from God.

In the kind of world we have today, transformation of humanity might well be our only real hope for survival.

New Yorkers love it when you spill your guts out there. Spill your guts at Wimbledon and they make you stop and clean it up.

Half a truth is often a great lie.

I like those older theaters - the acoustics are perfect, I mean, you just have that feel of there's been a thousand shows in there and now you get to be one.

When you're nursing and you're working 18-hour days, that's pretty hard

Not less than two hours a day should be devoted to exercise.

We have switched from defense to offense and in this battle all the members of the Hamas leadership are legitimate targets.