The self is a complex cognitive construct that is shaped by both internal and external factors. Internally, the self consists of the "I" that thinks and acts and the "me" that is one's self-concept and identity. Externally, the self develops through social interactions and comparisons with others. It is also influenced by societal and historical contexts. The self is not fixed but changes over time and situation. Self-awareness and self-esteem impact one's self-concept and behavior toward others.