anchor: According to psychologist David Keirsey, you are one of Plato's four types, you were born that way, you will always be that way, and you can find out which one you are by taking the temperament sorter quiz on his Web site.
positive: You were born one of Plato's four types and you will always be that way according to David Keirsey.
negative: You were born one of Plato's four types, but it's constantly changing over your lifetime.