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

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

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.

A person who has not made peace with his losses is likely to accept gambles that would be unacceptable to him otherwise.

It is only a slight exaggeration to say that happiness is the experience of spending time with people you love and who love you.

you know you have made a theoretical advance when you can no longer reconstruct why you failed for so long to see the obvious.

My interest in well-being evolved from my interest in decision making - from raising the question of whether people know what they will want in the future and whether the things that people want for themselves will make them happy.