An individual's self-concept is the core of his personality. It affects every aspect of human behavior: the ability to learn, the capacity to grow and change. A strong, positive self-image is the best possible preparation for success in life.
--Psychologist Dr. Joyce Brothers
Keep in mind that recent research suggests that the brain has a great deal of neuroplasticity. (Click here to read another blog posting I did on this topic.) If we work at it, in other words, it's possible to form new beliefs about ourselves.