Jealousy and Self-Esteem

Jealousy and Envy (quick dictionary definition): painful desire of another's advantages. 

This feeling comes in 2 forms: 

Jealousy is about losing a value to someone else (the context for jealousy is always social). It is a painful feeling regarding a value one has and is afraid of losing - or something a person has difficulty having, but see another enjoying. 
Example: Seeing the object of your romantic interest showing affection to someone else. 
Envy is about something one does not have, does not believe he can have,and yet see another person having and enjoying. 

Example: A chronically fat woman envying a good looking woman for being thinner. (You know the saying, "don't hate me 'cause I'm beautiful"). 

Jealousy, like other emotions, serves human survival. It is a negative emotion alerting a person in a painful way that his values are slipping away or that he is missing something crucial to him. 
To illustrate: a child who feels unloved when his parents take away attention from him onto a new little brother, becomes jealous and upset. This shows in his behavior and alerts his parents that he needs more attention. Jealousy here serves to show that some value is in danger (in this case, it's the parent's affection). 
While this is the normal function of jealousy (to protect life), it can arise as a result of some psychological problem or wrong standard of judging oneself. 

By itself, jealousy is not related to self esteem. In other words the mere emotion of jealousy is not an indication of lack of self esteem. It depends what the subject of the jealousy is. 

In some cases jealousy (or envy) is directed at another person's being, when the desired value in danger is one's own worth. Examples: Being jealous of someone because you consider them a better person morally, professionally, aesthetically, more popular, etc'. 

To illustrate: suppose the person you're romantically interested in dates someone else - there are two types of jealousy possible here: One is being jealous for the woman - wanting the woman and being jealous that someone else has her. The other option is being jealous of the personality of the man who has her and seeing it as reproach for your personality not being good enough. The last type is much more severe and threatening.

The second type of jealousy in this example revolves around a self-doubt - a crack in one's self esteem. 

In this case, a psychological problem (like a wrong premise) is involved and the actual threat indicated by jealousy is one's self-esteem. 

How does this come to be? What makes some people satisfied with what they have, while others are jealous of someone's success?

It all starts with how a person learns to judge himself. Each person has some idea of his own worth in his eyes. Each person has a standard, or a set of ideas with which he judges himself. 
Jealousy of the type associated to other people's success always involves an irrational standard for judging one's worth, and this can largely be based on how he was educated as a child - how his achievements and failures were treated by people the child looks up to for approval. 
Consider the parents who make clear to their child, that to be loved and appreciated, he needs to get the best grades in the class, regardless of his actual ability. This places all the weight of his self worth on the actual concrete - the good grade - and not on his performance. If he did his best, and got an average grade - he is not worthy of a prize, but worthy of contempt or indifference. This kind of education makes self-esteem impossible. And worse, it places one's self esteem on a value that does not naturally arise from one's desires and interests. This child is taught that repression, self-beating and hard, joyless work are his main tools to become a worthy person. The feeling is of having something bigger than oneself, something from above, like a severe judge, that the person has to live up to to be worthy. "One day I will be happy, when I am thin". "One day, I'll be happy, when I am rich". And guess what? When they finally do get thin or rich, they are not happy. Because it has no personal value to them, it is a value gained only to "please the judge". 

To give more examples of irrational standards: A standard for success is that one ought to succeed right away, purely from natural talent. Consider what it does to someone passionate about painting: He does not do as well as Michelangelo in his first attempt and then concludes he's no good and drops the whole thing. Or another example: Someone taking the action of productivity, divorced from his own desires and abilities, as part of his standard for judging people's worth (and his own worth). He immediately finds himself facing his own demand to start producing stuff in order to gain self-esteem. He becomes a slave to his own bad idea. A slave, because he makes himself work overtime without pay. "One day, when I am productive, I'll be happy". 

A rational standard of judging oneself is based on evaluation of one's performance in relation to one's actual abilities. The last part is crucial. It sets the basis for rational self-esteem, which means, evaluation of one's worth rationally, by what is possible in reality, and not by a dream-goal which is unachievable to the individual. 

[A side note: It is also important to choose the goals according to one's personal interests based on how a person feels about various things. A value should never be "something from above"]. 
From this it follows that a person should learn what are his abilities in those fields he wants to pursue (like sports, programming, painting, etc'). He does this by trying the best he can and observing the results and speed of progression in improving his skills in that field. 

Once he has some idea what he can expect from himself, he judges himself by how well he did compared to his ability. This way, so long as the person does his best, he gains self esteem, even if others can do better than him.
In contrast, a person who judges himself only based on achievement of something or failing to achieve it, will always be on the lookout to see what others achieved. If they achieve better, he feels like they "steal" his self-esteem and feels hostility. This is because he places all the emphasis on the concrete. Admitting that he does not have what it takes to achieve that concrete is like death to his self-esteem. He must be all-powerful without limitations. So if someone else achieved it, but he did not, it shows that the concrete can be achieved, and therefore automatically it is a reminder of his personal failure, and a cause of jealousy. In fact, there may be no failure involved. It could be that this person did the best he could. 

On the other side of the rope, telling a child that no matter what he does he is accepted and appreciated is bad too, since it encourages no effort from the child. The correct combination is judging one's success in achieving things but in relation to his abilities and limitations.
This creates an environment of self-acceptance and ambition combined (and I believe this is a rare combination nowadays). 

This is a good place to remind that by itself, jealousy is not related to self esteem. The mere emotion of jealousy is not an indication of lack of self esteem.
It is only an irrational standard of judging one's worth that leads to the jealous type whose self-worth is threatened by other people's success. If one wishes to eliminate the jealousy - one needs to replace his incorrect standard. 

Self Esteem, confidence and Motivation

Self esteem is required for motivation. The role of self esteem, or more specifically the self esteem we feel about ourselves in specific fields is ingrained in motivation to pursue values in that field.

The reason we are built this way is because it serves our survival. For example: Suppose you're building a house with your own hands, but you know from experience that you are bad with hammering nails to the beams, you feel lack of confidence in that field: this serves to protect you from the damage you may cause (to your life and your values). Your recognition of your own ability in that field determines your emotional motivation to pursue it. On the other hand, if you're good with hunting animals or dancing, you have high confidence in your ability to pursue that value, you'd feel motivation to pursue it. When you succeed, it reinforces your confidence, and also serves as a reward. So self esteem is both a requirement and a reward for action.

This mechanism can work against you (when a mistake is involved): one example is insecurity with "hitting on" women. In this case, the mechanism of confidence<-->motivation prevents you from not hammering nails into your hands, but potentially (if a mistake is involved) also to be too afraid to hit on women or go after something you desire. 

An example of that would be someone who expects himself to succeed at something right away without a process of learning. When he would fail (and he would, since learning is always required), he would get a sense of insecurity which would dismotivate him from pursuing that activity in the future. And it would be a false conclusion about his own ability. 

Confidence by itself, feels so great, that it can be by itself an added motivation to achieve something. Doing something well, allows you to look at yourself later on as the one who created something well, and be proud of yourself (in other words have higher self esteem). Such motivation is in the background of the desire to improve and do things well (not just "get them done"). 

Self-esteem is a general form of confidence: it does not apply to the ability to achieve values in a specific field, but to living as a whole (to your ability to live). It primarily comes from how one's actions and their result stand in relation to one's principles. Confidence in many small fields integrates itself in our mind to self esteem as a total sum. 

Achieving confidence depends on achieving one's goals, and achieving one's goals depend on one's principles (among other things). 

For example, great entrepreneurs like Herbert Dow,were guided by the principle of making a living by means of creating new products, and doing it well. Dow held this principles not as a mere intellectual idea, but as a passion for creation. He was also rational - never overlooking facts, and he had the correct principles in economics. As a result, he was successful. He was confident, and his confidence grew with his success. 
His self esteem was high because he had the right principles for living, and throughout his life - his actions matched his principles. 

To the extent a person conceptualizes certain virtues as practical to his life, his self esteem will depend on the relation between his actions and what he perceives as virtues. 
If he comes to the wrong conclusions, he will not be able to achieve his goals, and he will become insecure the more years go by. 
For example, if someone believes in mystical powers, and he thinks a man's worth is measured by his ability to possess mystical powers - he will fail time and time again in achieving his goal. He may wish for a red traffic light to turn green, but it won't in most times. He may try to guess your astrology sign, but fail most of the time. And so on. Eventually, he will not be able to achieve self esteem because his principles and ideas are not in line with reality. 

Human beings think in principles. some animals learn from experience and probability (for example, a stick can pull a banana in certain situations). Human beings form ideas, concepts and principles to condense our knowledge. 

Likewise, we use principles to guide our actions, and how we live. 
And this is why self esteem depends on principles, and the relation of one's actions and their success to one's principles.