If Threes are about success, Fours are about authenticity. Fours have a deep and wide range of emotions and trust their subjective experience to make their life-decisions. They are frequently highly esthetic (not in talent, necessarily, but in concern), because they have a highly developed ability to think symbolically. This coupled with their emotional richness cries out for artistic expression.
When healthy Fours make a personal statement in many things they do, from the way they dress to their choice of Impressionist paintings. They rather enjoy not being part of the crowd and have a natural sense of aristocracy. Taste, they maintain, is not determined by votes.
When they are less healthy, their speech becomes lamentation as they claim their uniqueness because of their suffering. They often develop a spirit of entitlement to compensate for a feeling that somehow they are defective. This defect, paradoxically, is the basis for their claim that they deserve love. They make a claim on their friends' love because they have suffered and this suffering has made them more authentic - and so more lovable.
Fours you may know: Shakespeare, Dennis Rodman, Nicholas Cage, Marlon Brando, Ann Rice, (Vampires are depicted as Fours), Kate Winslet, Vincent van Gogh, Eric Clapton, Michael Jackson, John Malkovich, Thomas Merton, and Allen Watts.