The premise of this book is that it is easier to recognize other people's mistakes than your own.

When you analyze happiness, it turns out that the way you spend your time is extremely important.

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

The brains of humans contain a mechanism that is designed to give priority to bad news.

Many ideas happen to us. We have intuition, we have feeling, we have emotion, all of that happens, we don't decide to do it. We don't control it.

A large portion of the weekend effects is explained by differences in the amount of time spent with friends or family between weekends and weekdays.

There are some conditions where you have to trust your intuition.