Select your friendships carefully. Gather people around you who will reinforce your lifestyle.

I live on the water. I live in a neighborhood that's consummately connected to my neighbors. I bump into them every day. I can bike to work.

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

True happiness involves the pursuit of worth goals; without dreams, without risks, only a trivial semblance of living can be achieved.

I think we need to think about our physical activity as a reward, as something enjoyable and something we look forward to doing, not something that we regard as self-flogging.

So learning to play a new instrument, learning a new language - those sorts of things will pay dividends for years or decades to come.

Inconvenience yourself: ditch the remote, the garage door opener, the leaf-blower; buy a bike, broom, rake, and snow shovel.