With everything you do, in fact, you should train yourself to question your repeated behaviors.

We can think about how we reduce the pain in paying. So, for example, credit cards are wonderful mechanisms to reduce the pain of paying. If you go to a restaurant and you are paying cash, you would feel much worse than if you were paying with credit card. Why? You know the price, there's no surprise, but if you're paying cash, you feel a bit more guilt.

The major thing that holds you back when you're trying to change a bad habit like eating, smoking, or drinking too much is your belief you are out of control.

Giving up on our long-term goals for immediate gratification, my friends, is procrastination.

What kind of people would be able to rationalize better than other people? Better storytellers, right? Creative people, right? Because if you're creative, you find more ways to cheat and still yourself a story about why this is okay.

The most difficult thing is to recognize that sometimes we too are blinded by our own incentives. Because we don’t see how our conflicts of interest work on us.

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.