Some definitions

Some definitions from Wikipedia

Egotism is a doctrine that individual self-interest is the appropriate motive of all conscious action. Such a belief asserts that individual self-interest is the valid end of all actions. Egotism manifests as excessive rationalization, denial, narcissism, as well as the inordinate concern for oneself, or a tendency to speak or write of oneself boastfully and at great length. Egotism may also be coupled with an inflated sense of one's own importance, at the denial of others. This conceit is a character trait, which describes a person who acts to gain values in an amount greater than that of the values he/she gives to others. Egotism is often accomplished by exploiting the altruism, irrationality and ignorance of others, as well as utilizing coercive force and/or fraud.

Egotism differs from both altruism, or acting to gain fewer values than are being given, and egoism, a determination to gain and give an equal amount or degree of values. Various forms of "empirical egoism" can be consistent with egotism, as long as the value of one's own self-benefit is entirely individual.

Superiority complex refers to a subconscious neurotic mechanism of compensation developed by the individual as a result of feelings of inferiority. The term was coined by Alfred Adler (February 7, 1870 – May 28, 1937), as part of his School of Individual Psychology.

Those exhibiting the superiority complex commonly project their feelings onto others they perceive as inferior to themselves. Accusations of arrogance and cockiness are often made by others when referring to the individual exhibiting the superiority complex.

Behaviors related to this mechanism may include an exaggeratedly positive opinion of one’s worth and abilities, unrealistically high expectations in goals and achievements for oneself and others, vanity, extravagant style in dressing (with intention of drawing attention), pride, sentimentalism and affected exaltation, snobbism, a tendency to discredit other’s opinions, forcefulness aimed at dominating those considered as weaker or less important, credulity, and others.

Social aloofness, daydreaming, isolation could also be associated to the Superiority Complex, as a way to evade the fear of failure related to the feelings of inadequacy to face real world.

Superiority and Inferiority Complex are often found together as the different expressions of the same pathology.

Action, as a concept in philosophy, is what humans can do.