I tried the paleo diet, which is the caveman diet - lots of meat. I tried the raw food vegan diet. And I tried the calorie restriction diet, which is the idea is that if you eat very, very little - if you're on the verge of starvation, you will live a very long time. Whether or not you want to, of course, is the idea.

I know that you should always say yes to adventures or you'll lead a very dull life.

I don't believe that prayers actually change God's mind - if there is a God - but I liked praying for people in need. It was like moral weightlifting. I tend to be self-obsessed, and it was nice to get out of my brain once in a while.

Probably 90 percent of our life decisions are powered by the twin engines of inertia and laziness.

The Bible improved my ethical IQ. I started to act like a good person. I tried not to gossip, and lie, and covet, and just by pretending I was a good person, I think I actually became a little bit better of a person. I'm not Gandhi or Angelina Jolie, but it was a baby step.

One of the interesting things to me is that God grows throughout the Old Testament. He evolves, sort of matures, and becomes kinder.

Very few people changed the world by sitting on their couch.