If you're checking out whom to do business with, ask what they do to relax on the weekends. If they say helicopter skiing, walk away, they are mentally not right. The most cognitively brilliant people usually had to sacrifice their emotional selves. They live in a fog of facts rarely creating a new one, just regurgitating everything they've ever learnt and we're supposed to think that's smart. That's a walking Wikipedia not a human being. This also might mean they're not top of the class on the morals front. They feel nothing so they can squeeze you dry without a wisp of remorse.
Ruby Wax: Sane New World