“The names we use to describe personality traits - such as extrovert, high achiever, or paranoid - refer to the specific patterns people have used to structure their attention. At the same party, the extrovert will seek out and enjoy interactions with others, the high achiever will look for useful business contacts, and the paranoid will be on guard for signs of danger he must avoid. Attention can be invested in innumerable ways, ways that can make life either rich or miserable.”