Egoism is the philosophy concerned with the role of the self, or ego, as the motivation and goal of one's own action. Different theories on egoism encompass a range of disparate ideas and can generally be categorized into descriptive or normative forms. That is, they may be interested in either describing that people do act in self-interest or prescribing that they should. Other definitions of egoism may instead emphasise action according to one's will rather than one's self-interest, and furthermore posit that this is a truer sense of egoism.
The New Catholic Encyclopedia states of egoism that it "incorporates in itself certain basic truths: it is natural for man to love himself; he should moreover do so, since each one is ultimately responsible for himself; pleasure, the development of one's potentialities, and the acquisition of power are normally desirable." The moral censure of self-interest is a common subject of critique in egoist philosophy, with such judgments being examined as means of control and the result of power relations. Egoism may also reject that insight into one's internal motivation can arrive extrinsically, such as from psychology or sociology, though, for example, this is not present in the philosophy of Friedrich Nietzsche.
The term egoism is derived from the French égoïsme, from the Latin ego (first person singular personal pronoun; "I") with the French -ïsme ("-ism").
The descriptive variants of egoism are concerned with self-regard as a factual description of human motivation and, in its furthest application, that all human motivation stems from the desires and interest of the ego.In these theories, action which is self-regarding may be simply termed egoistic.
The position that people tend to act in their own self-interest is called default egoism,whereas psychological egoism is the position that all motivations are rooted in an ultimately self-serving psyche. That is, in its strong form, that even seemingly altruistic actions are only disguised as such and are always self-serving. Its weaker form instead holds that, even if altruistic motivation is possible, the willed action necessarily becomes egoistic in serving one's own will. In contrast to this and philosophical egoism, biological egoism (also called evolutionary egoism) describes motivations rooted solely in reproductive self-interest (i.e. reproductive fitness). Furthermore, selfish gene theory holds that it is the self-interest of genetic information that conditions human behaviour.
For broader coverage of this topic, see Moral psychology.
The word "good" is from the start in no way necessarily tied up with "unegoistic" actions, as it is in the superstition of those genealogists of morality. Rather, that occurs for the first time with the collapse of aristocratic value judgments, when this entire contrast between "egoistic" and "unegoistic" pressed itself ever more strongly into human awareness—it is, to use my own words, the instinct of the herd which, through this contrast, finally gets its word (and its words).
— Friedrich Nietzsche, On the Genealogy of Morals
In his On the Genealogy of Morals, Friedrich Nietzsche traces the origins of master–slave morality to fundamentally egoistic value judgments. In the aristocratic valuation, excellence and virtue come as a form of superiority over the common masses, which the priestly valuation, in ressentiment of power, seeks to invert—where the powerless and pitiable become the moral ideal. This upholding of unegoistic actions is therefore seen as stemming from a desire to reject the superiority or excellency of others. He holds that all normative systems which operate in the role often associated with morality favor the interests of some people, often, though not necessarily, at the expense of others.
