Intuitive diagnosis is reliable when people have a lot of relevant feedback. But people are very often willing to make intuitive diagnoses even when they're very likely to be wrong.

When you analyze happiness, it turns out that the way you spend your time is extremely important.

Lucky risk takers use hindsight to reinforce their feeling that their gut is very wise. Hindsight also reinforces others' trust in that individual's gut.

It's nonsense to say money doesn't buy happiness, but people exaggerate the extent to which more money can buy more happiness.

An individual who expresses high confidence probably has a good story, which may or may not be true.

One study found that people who just thought about watching their favorite movie actually raised their endorphin levels by 27 percent.

Alternative descriptions of the same reality evoke different emotions and different associations.