"Learn New Skills, Ask Questions, Practice Yoga--and Only Travel Carry-On."

From time to time, I post short interviews with interesting people about their insights on happiness. During my study of happiness, I've noticed that I often learn more from one person's highly idiosyncratic experiences than I do from sources that detail universal principles or cite up-to-date studies. I'm much more likely to be convinced to try a piece of advice urged by a specific person who tells me that it worked for him or her, than by any other kind of argument.

Sometimes, in ways...