If you think of people as making decisions actively, every time we think about the cup of coffee, we say, "How much will I enjoy the cup of coffee, what else could I not do in the future because I buy this cup of coffee?

If you get people to feel that they are putting something, that they are creating it and so on, their love for the project would increase. The more something is yours, the more you're willing to invest in it.

We have very strong intuitions about all kinds of things — our own ability, how the economy works, how we should pay school teachers. But unless we start testing those intuitions, we’re not going to do better.

Motivation, basically getting people to be happy at work, everybody - everybody benefits.

The real issue is, how much goodwill do you invest in the work? And goodwill is not something that we can buy with money. It's very hard to buy goodwill with money.

I don't think we should go around life and being miserable all the time and feel the pain of paying. It's a question of what categories we want to spend more on and what categories we want feel that we are spending too much on and we want to cut down.

The people who need to overcome temptation to the highest degree have the hardest time doing it.