Self-esteem is a term in psychology to reflect a person's overall evaluation or appraisal of his or her own worth. Self-esteem encompasses beliefs (for example, "I am competent", "I am worthy", "I can",) and emotions such as triumph, despair, pride and shame.
'The self-concept is what we think about the self; self-esteem, the positive or negative evaluation of the self, is how we feel about it'. A person’s self-concept consists of the beliefs one has about oneself, one’s self perception, or, as Hamlyn expresses it, “the picture of oneself”.
To explain this in a layman's term, let's split the word in two and explain each separately. Esteem is a fancy word for thinking that someone or something is important or valuing that person or thing. It is a word that means to be "respected and admired, typically for a person. For example, "Johnson was held in high esteem by colleagues." This means Johnson was respected and admired by his colleagues. The other word is self. It simply means " yourself!"
Discussion
When you have self-esteem, you can see yourself for who you are and even if you're born without a silver spoon, you can still be proud of who you are and strive to be what you want to be. If you lack self-esteem(or have a low self-esteem,) you may not be able to have a vision for a better future. If by accident you stumble on a vision, your self-esteem may not be the most important factor that determines how far you go to fulfill that vision, but it could as well be a very important determining factor of your willingness to pursue it.
Many times I have heard parents scold their children with these words: "Your schoolmates are successful not because they have two heads." I would like to clarify that for most parents these words are not intended to bring down the