Mood evidently affects the operation of System 1: when we are uncomfortable and unhappy, we lose touch with our intuition. These findings add to the growing evidence that good mood, intuition, creativity, gullibility, and increased reliance on System 1 form a cluster. At the other pole, sadness, vigilance, suspicion, an analytic approach, and increased effort also go together. A happy mood loosens the control of System 2 over performance: when in a good mood, people become more intuitive and more creative but also less vigilant and more prone to logical errors.

If there was one ubiquitous recommendation about marriage it was this: "Don't go to bed angry."

There are domains in which expertise is not possible. Stock picking is a good example. And in long-term political strategic forecasting, it's been shown that experts are just not better than a dice-throwing monkey.

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.

The experiencing self lives in the moment; it is the one that answers the question, 'Does it hurt?' or 'What were you thinking about just now?' The remembering self is the one that answers questions about the overall evaluation of episodes or periods of one's life, such as a stay in the hospital or the years since one left college.

Political columnists and sports pundits are rewarded for being overconfident.

Divorced women, compared to married women, are less satisfied with their lives, which is not surprising. But they're actually more cheerful, when you look at the average mood they're in in the course of the day.