Deferred gratification or delayed gratification is the ability to wait in order to obtain something that one wants. This ability is usually considered to be a personality trait. Daniel Goleman has suggested that it is an important component of emotional intelligence. People who lack this trait are said to need instant gratification and may suffer from poor impulse control.
Psychoanalysts have argued that people with poor impulse control suffer from "weak ego boundaries". The term comes from Sigmund Freud's theory of personality where the id is the pleasure principle, the superego is the morality principle, and the ego is the reality principle. The ego's job is to satisfy the needs of the id while respecting other people's needs. According to this theory, a person who is unable to delay gratification may possess an unbalanced id that the ego and superego are unable to control.
Self control is perceived in a few ways. One of which is philosophical and might be described as the exertion of one's own will on their personal self - their behaviors, actions, thought processes. Much of this comes from the perception of self and the ability to set up boundaries for that self. Self-control can be expanded into several different areas, ranging from respect to willpower. Self-control is therefore centered in the ability of a person to exert their will over the inhibitions of their body or self.