We are often confident even when we are wrong, and an objective observer is more likely to detect our errors than we are.

Through some combination of culture and biology, our minds are intuitively receptive to religion.

People who face a difficult question often answer an easier one instead, without realizing it.

You should expect little or nothing from Wall Street stock pickers who hope to be more accurate than the market in predicting the future of prices. And you should not expect much from pundits making long-term forecasts.

Mental effort, I would argue, is relatively rare. Most of the time we coast.

Many people will admit that they made a mistake [putting money in dot-coms or telecoms at their peak] But that doesn’t mean that they’ve changed their mind about anything in particular. It doesn’t mean that they are now able to avoid that mistake.

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