We're generally overconfident in our opinions and our impressions and judgments.

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

We have associations to things. We have, you know, we have associations to tables and to - and to dogs and to cats and to Harvard professors, and that's the way the mind works. It's an association machine.

The confidence that individuals have in their beliefs depends mostly on the quality of the story they can tell about what they see, even if they see little.

Human beings cannot comprehend very large or very small numbers. It would be useful for us to acknowledge that fact.

When people believe a conclusion is true, they are also very likely to believe arguments that appear to support it, even when these arguments are unsound.

Groups tend to be more extreme than individuals.