In a rising market, enough of your bad ideas will pay off so that you'll never learn that you should have fewer ideas.

Slow thinking has the feeling of something you do. It's deliberate.

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.

A reliable way to make people believe in falsehoods is frequent repetition, because familiarity is not easily distinguished from truth. Authoritarian institutions and marketers have always known this fact.

The extra daily social time of 1.7 hours in weekends raises average happiness by about 2%.

The illusion that we understand the past fosters overconfidence in our ability to predict the future.

People who are cognitively busy are also more likely to make selfish choices, use sexist language, and make superficial judgments in social situations.