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.

If changing our world is playing God, it is just one more way in which God made us in His image.

What I'm after is not living to 1,000. I'm after letting people avoid death for as long as they want to.

It's not just about life, of course; it's about healthy life. Getting frail and miserable and dependent is no fun, whether or not dying may be fun.

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.

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.