If you’re eating vegetables you are probably pushing unhealthier food out of your diet.

The brutal reality about aging is that it has only an accelerator pedal. We have yet to discover whether a brake exists for people.

It's hard to reach [the age of] 100. We're not programmed for longevity. We are programmed for something called procreative success.

If one fails to develop goals that give meaning to one’s existence, if one does not use the mind to it’s fullest, then good feelings fulfill just a fraction of the potential we possess. True happiness involves the pursuit of worthy goals. Without dreams, without risks, only a trivial semblance of living can be achieved.

The more things for which you develop a fondness the richer the life you live.

Life expectancy in America is about 79, we should be able to live to 92. Somewhere along the line, we're leaving 13 years on the table. So my quest is -- how do we get those extra 13 years? And how do we make those extra 13 years good years?

You have to know why you get up every morning.