up were turned to other uses, we could easily solve the material problems of the world. Yet most of that energy is wasted because how we look, or how much we weigh, is more difficult to change because it is more dependent on genetic instructions than are personality traits. And, of course, improving who we are is a great deal more important than improving how we look. To change personality means to learn new patterns of attention. To look at different things, and to look at them differently; to learn to think new thoughts, have new feelings about what we experience.
