You could have two completely different careers if you could stay healthy to 90. How fascinating that would be.

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.

It is only through us that God lives. When we abandon him, he dies.

There is nothing wrong with America that faith, love of freedom, intelligence, and energy of her citizens cannot cure.

It will be obvious to anyone who sees it that he [Doctor Strange] earns that cloak. You think he's doing all right and then you realise that there's one massive lesson to learn.

"Belief in the truth commences with the doubting of all those "truths" we once believed."

Man is troubled by what might be called the Dog Wish, a strange and involved compulsion to be as happy and carefree as a dog

The sage governs by emptying senses and filling bellies.

One service to need heals an ancient wound.

And I do believe that the way to change a society, to uplift people - not just their spirit, but to uplift their society and economic base - is through education.

There's a very real argument that the minute we are capable of going to a planet, whether it's Mars or another one, and inhabiting it, that we really should.

I never really understood all the hype, until I got one of my own.