Most of the time, we think fast. And most of the time we're really expert at what we're doing, and most of the time, what we do is right.

Every night for the next week, set aside ten minutes before you go to sleep. Write down three things that went well today and why they went well...Writing about why the positive events in your life happened may seem awkward at first, but please stick with it for one week. It will get easier. The odds are that you will be less depressed, happier, and addicted to this exercise six months from now.

If people can construct a simple and coherent story, they will feel confident regardless of how well grounded it is in reality.

It's not a case of: 'Read this book and then you'll think differently. I've written this book, and I don't think differently.

We know that the French are very different from the Americans in their satisfaction with life. They're much less satisfied. Americans are pretty high up there, while the French are quite low - the world champions in life satisfaction are actually the Danes.

Experts don't know exactly where the boundaries of their expertise are.

Most successful pundits are selected for being opinionated, because it's interesting, and the penalties for incorrect predictions are negligible. You can make predictions, and a year later people won't remember them.