One of the reasons my father ... became a dentist was so he could always be home for dinner and spend weekends with his family. At one point he had thought about being a musician, but he said, I'm not going to do that because I'd be on the road all the time and I wouldn't be with my family.

Poor health is not caused by something you don't have; it's caused by disturbing something that you already have. Health is not something you need to get, it's something you have already if you don't disturb it.

I've found that if I tell somebody 'Eat this and don't do that,' it's not only not helpful, it's counterproductive because even more than being healthy, we want to feel free and in control, and as soon as somebody tells us to do something, there's a tendency to do just the opposite.

Because the biological mechanisms that affect our health and well-being are so dynamic, when people change their diet and lifestyle, they usually feel so much better, so quickly; it reframes the reason for changing from fear of dying to joy of living. Also, the support that patients give each other is a powerful motivator.

Joy of living is sustainable; fear of dying is not.

Meaning is malleable: take it out, you get nihilism and despair. Put it in, you get sacredness and something most special.

Whether you're six or sixty, if you go on a diet and lifestyle program and feel constrained, you're likely to go off it sooner or later. Offering a spectrum of choices is much more effective; then, you feel free and empowered.