Laziness is built deep into our nature.

Experts don't know exactly where the boundaries of their expertise are.

We are very influenced by completely automatic things that we have no control over, and we don't know we're doing it.

People just hate the idea of losing. Any loss, even a small one, is just so terrible to contemplate that they compensate by buying insurance, including totally absurd policies like air travel.

We can't live in a state of perpetual doubt, so we make up the best story possible and we live as if the story were true.

Organizations may be better able to tame optimism than individuals are.

The psychologist, Paul Rozin, an expert on disgust, observed that a single cockroach will completely wreck the appeal of a bowl of cherries, but a cherry will do nothing at all for a bowl of cockroaches.