The brains of humans contain a mechanism that is designed to give priority to bad news.

Most of the moments of our life - and I calculated, you know, the psychological present is said to be about three seconds long; that means that, you know, in a life there are about 600 million of them; in a month, there are about 600,000 - most of them don't leave a trace.

I have always emphasized the willingness to discard.

We are prone to overestimate how much we understand about the world and to underestimate the role of chance in events.

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.

A person who has not made peace with his losses is likely to accept gambles that would be unacceptable to him otherwise.

Groups tend to be more extreme than individuals.