I think we have to do everything that's useful. We're doctors. Our job is to tell the truth. And it doesn't have to be embellished in any way.

Medicine is often conservative and slow to incorporate something that wasn't there before and that we're afraid people are going to laugh at us for. But, the beauty of music is - well, a couple things. There are no side effects that are harmful. Music doesn't do that. It doesn't have any negative effects whatsoever. So I do think it's going to come, but I think it's a new idea for people.

In China, because China is gaining wealth, rice consumption is way down. Rice is a poor person's food, and they're eating less of it. To wait in line at a fast food chain is cool. And they haven't historically had weight problems. So they don't have this culture of, "I need to lose weight."

I think herd mentality is a good thing overall. Because if every sheep had to figure out the velocity of the wolf and their personal risk, that would take forever.

It doesn't do a lot of good for your health to move from red meat to white meat, but it gets you further down the road towards making more substantial changes later.

I'm thinking of people in rural Japan and China, where McDonald's hasn't yet arrived. These are the thinnest, healthiest, longest-lived people with the least risk of cardiovascular disease and diabetes.

I am always struck by how difficult it is for people to see how much cruelty they are bringing not only upon animals but upon themselves and their loved ones and other people, how much we are screwing up the planet, how much we are hurting our own health, how hard it is to change all that, how eager people are to make a buck at everybody else's expense - all those things are discouraging.