Clearly, the decision-making that we rely on in society is fallible. It's highly fallible, and we should know that.

Experienced happiness refers to your feelings, to how happy you are as you live your life. In contrast, the satisfaction of the remembering self refers to your feelings when you think about your life.

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.

People have little idea, by and large, of the investment world. They are convinced they have an advantage.

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

We are prone to overestimate how much we understand about the world and to underestimate the role of chance in events.

Our comforting conviction that the world makes sense rests on a secure foundation: our almost unlimited ability to ignore our ignorance.