The concept of happiness has to be reorganised.

The idea that you can ask one question and it makes the point - well, that wasn't how psychology was done at the time.

Money does not buy you happiness, but lack of money certainly buys you misery.

The planning fallacy is that you make a plan, which is usually a best-case scenario. Then you assume that the outcome will follow your plan, even when you should know better.

We deeply want to be led by people who know what they're doing and who don't have to think about it too much.

It's a wonderful thing to be optimistic. It keeps you healthy and it keeps you resilient.

An investment said to have an 80% chance of success sounds far more attractive than one with a 20% chance of failure. The mind can't easily recognize that they are the same.