In the beginning, you only had to please your parents. You depended on them for survival, so they called the shots. Gradually you found other people to depend on -- and they, too, often wanted something from you in exchange for their approval. Then one day, if you were paying attention, you realized it was mathematically impossible to keep all those people happy because they disagreed with each other. The solution? To acknowledge what you’d probably heard by then, that happiness is an inside job.