Your future self is watching you right now through your memories.

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

There is no difference between saving lives and extending lives, because in both cases we are giving people the chance of more life.

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.

[Anti-aging therapies will] never be perfect, but we'll be able to fix the things that 200-year-olds die of before we have any 200-year-olds, and the same for 300 and 400 and so on.

The right to choose to live or to die is the most fundamental right there is; conversely, the duty to give others that opportunity to the best of our ability is the most fundamental duty there is.

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

The biggest handicap in research is an ability to think outside the box. The handicap is being encumbered by all the conventional wisdom in a given field.

What I actually wanted to do with my life is make a difference to the world. That led me into science very quickly.

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.

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

Energy spent to worry is a total lose. It is a down payment you’ve made without any return”.

If you have had a bad day, remember that tomorrow is a wonderful gift and a new chance to try again.

Keep quiet and people will think you a philosopher.

The end we aim at must be known, before the way can be made.

Romance lasts forever, love don't fade away. They may take away our future, but they can't stop yesterday.

We've invested millions of dollars in tourism. Now they're trying to industrialize and pollute the ocean. It doesn't make any sense to me at all.

After I set out to refute Christianity intellectually and couldn't, I came to the conclusion the Bible was true and Jesus Christ was God's Son.

I don't want to be empty on the inside.

Trust is earned by many deeds, and lost by only one.

You continue to change your approach until you achieve what you want using whatever life gives you along the way.