> Have worked with a lot of very unhappy geniuses. I haven't worked with a lot of very obvious geniuses, strictly speaking, but I've known plenty of very smart

> Have worked with a lot of very unhappy geniuses. I haven't worked with a lot of very obvious geniuses, strictly speaking, but I've known plenty of very smart people who weren't particularly happy. And I've known several people that I absolutely would not consider geniuses who were nevertheless brimming with curiosity, successful, and quite outwardly cheerful (though at least one suffered from anxiety and depression). Heck, going by IQ I'm only, what, 15 points off from genius and I'm not particularly happy either. Nor am I that smart for values of "smart" that people would traditionally associate with genius, but maybe that makes all the difference? I can barely do tips in my head ...