How do “experience” and “memory” shape well-being? Author Jonathan Haidt talks about three of the ten great truths from his book The Happiness Hypothesis. To be a great truth, it has to arise on multiple continents and multiple eras, but what we tend to find is that these truths occur to everybody who thinks about the human condition. Does happiness come from the outside or the inside? And what happens when the two conflict? Daniel Gilbert and Jonathan Haidt discuss