Years ago when I got stuck, I'd start twirling my hair. That's not possible anymore. I can't prove the relationship between writing and hair loss, but I think I pulled out a fair amount trying to work on certain sentences.

A typical workday for me is getting up at about 5:00, 5:15 in the morning, getting some coffee or tea as quickly as possible, and then getting to my desk. And ideally, I'll start writing around 5:30, 5:45, and I'll write for three, four hours, and then I'll take a break, and read over what I write. Maybe about lunchtime, I'll go exercise or get out into the day. Then I'll either read over what I wrote the day before and quit work around 3:00 or 4:00 in the afternoon and spend some time with my kids.

We're all connected by the system, and we all have to be a part, I think, of changing it.

The fast-food industry is in very good company with the lead industry and the tobacco industry in how it tries to mislead the public, and how aggressively it goes after anybody who criticizes its business practices.

What we eat has changed more in the last 40 years than in the previous 40,000. The survival of the current food system depends upon widespread ignorance of how it really operates.

There's a real strong link today between soda consumption and obesity among children.

I really like visiting schools, but what I tell students isn't anywhere near as interesting to me as what they tell me.