In a rising market, enough of your bad ideas will pay off so that you'll never learn that you should have fewer ideas.

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

Ten minutes of a smartphone in front of your nose is about the equivalent of an hour long walk in bright daylight. Imagine going for an hour long walk in bright daylight and then thinking, "Now I'll get some sleep." It ain't going to happen.

Intelligence is not only the ability to reason; it is also the ability to find relevant material in memory and to deploy attention when needed.

If individuals are rational, there is no need to protect them against their own choices.

Every night for the next week, set aside ten minutes before you go to sleep. Write down three things that went well today and why they went well...Writing about why the positive events in your life happened may seem awkward at first, but please stick with it for one week. It will get easier. The odds are that you will be less depressed, happier, and addicted to this exercise six months from now.

We have associations to things. We have, you know, we have associations to tables and to - and to dogs and to cats and to Harvard professors, and that's the way the mind works. It's an association machine.