I usually find that the process of discovery is more interesting than the answers.

I'm a big admirer of Walter Willett's work. I think he's done some really important research. He and I agree on most things.

People don't dislike change, they dislike being changed.

Although scientists can often be as resistant to new ideas as anyone, the process of science ensures that, over time, good ideas and theories prevail.

The Internet has transformed many parts of our daily lives, touching everything from how we find information to how we go shopping, get directions, and even stay in touch with friends and family.

I grew up in Texas, eating meat five times a day, and I liked meat. But I began being a vegetarian when I was 19 because I found that I felt better.

The healing power of love and relationships has been documented in an increasing number of well-designed scientific studies involving hundreds of thousands of people throughout the world.