Concept of the self
The concept of the self is a concept that we all must tackle. To understand such a vast concept of the self you must break down the concept of self into smaller parts: understanding of who you are; your feelings about yourself; and your behaviors.
Who are you?
This is a very complex question. You have several selves so to speak. There is you the body self, which is your body, and the physical possessions that belong to the body. There is you the inner self, which is your thoughts, feelings, and aspects of your inner self that you feel obligated to defend. Do not forget about your interpersonal self, which involves your daily roles in life. For example, son, father, employee, boss, friend, husband. Then there is the self that society gives you this includes race (remember race is a social concept like it or not we are all the same species), religion, country, and age. Depending on your cultural orientation, you might accept the fact that there is a neutral observer. To put this perspective think about the age old question, if a tree falls in the forest and nobody is there to hear it then did it really make a noise? In other words, there is a part of you that is separate from your thoughts, this is the part of you that observes the thoughts. To illustrate this point more clearly use the falling tree question about your thoughts, if a thought takes place but you are not aware of it did the thought really happen?
Your feelings about yourself
The self-concept is what people think about their selves and what people know about their selves. People develop their self-concept from learning about their selves in various contexts. One context which people develop their self-concept is from how they view their selves and from their inner thoughts. Some people also develop feelings about their self from what others tell them.
People learn about who they are by observing their behavior and making value judgments about their behavior. For example, a person may decide to define their selves by what sport they like to play or what subject they like to study these are observable behaviors.
Fiske, S. T. (2010). Social beings: Core Motives in Social Psychology (2nd Ed.). Hoboken, NJ: Wiley.