Excerpted from
![](https://images.penguinrandomhouse.com/cover/9780553373936?height=200&maxwidth=200)
Excerpted from The New Personality Self-Portrait by John M. Oldham, M.D., and Lois B. Morris, copyright © 1995 by John M. Oldham, M.D., and Lois B. Morris. Published by Bantam Books, an imprint of The Random House Publishing Group, a division of Random House, Inc., New York.