Moreover, they tell us that the Extrovert Ideal is not as sacrosanct as we may have thought. So if, deep down, you've been thinking that it's only natural for the bold and sociable to dominate the reserved and sensitive, and that the Extrovert Ideal is innate to humanity, Robert McCrae's personality map suggests a different truth: that each way of being--quiet and talkative, careful and audacious, inhibited and unrestrained--is characteristic of its own mighty civilization.