Character Structure 

What one is is one's character structure, which consists of one's philosophy of life, one's aim in life, what one speaks habitually, what one does habitually, and how one lives habitually. Habits are tendencies of behaviour which are perpetuated by practice; Practice means repetition. What one repeats habitually, one becomes. One repeats, however, only what one wants to be. One is what one wants to be. What one wants to be depends on one's sense of values, which in turn depends on one's philosophy of life. 
An individual's character is a functional whole that is organized to reach a set goal. Every habit of thought, speech, and action is an integral part of this functional whole, which is necessary to reach this goal. 
The goal, however, is always a personality. It is some self that one wants to be. To be more accurate, the goal is a visualized image of the person one wants to become. 
This person one wants to become is always a person one considers to be superior in some form. One always wants to move from a state of inferiority to a state of superiority. One's goal tends to be what one perceives to be lacking in oneself. What is perceived to be superior depends on one's sense of values. These values, again, depends on one's philosophy of life. 
If we want to change our habits, we can do so only by becoming a different person: by a rebirth-which means we have to change our philosophy of life. We have to change our goal in life, which will be followed by a complete reorganizing of our thought, speech, action, and life to reach a different goal. This means, we will have a new way of thinking, a new way of feeling and a new way of speaking, acting, and living. Then old habits will be dropped and new habits will be formed. Isolated habits cannot be eliminated because they are essential parts of one's character structure organized to reach a desired goal. It is only by a character transformation that one can change one's habits. This is the reason for the many failures in attempts to overcome habits like eating, drinking, smoking, etc.