It is well to accept the idea that comparing yourself to others causes an unrealistic self-image. If you compare yourself with others, you run the risk of developing feelings of superiority or inferiority. There are simply no inferior or superior human beings. The equality of man is the only proper truth. In fact, only a person with an inferiority complex can desire to be superior. Psychoanalytic research confirms that a superiority complex is more often a sad and hopeless cover-up for feelings of worthlessness and despair.
~ Strickland & Shafe, How to Develop an Attitude for Success (1969)