Modern literary criticism, even when – as is now customary – it is not concerned with questions of authentication, still defines the author in much the same way: the author provides the basis for explaining not only the presence of certain events in a work, but also their transformations, distortions, and diverse modifications (through his biography, the determination of his individual perspective, the analysis of his social position, and the revelation of his basic design). The author is also the principle of a certain unity of writing – all differences having to be resolved, at least in part, by the principles of evolution, maturation, or influence. The author also serves to neutralize the contradictions that may emerge in a series of texts: there must be - at a certain level of his thought or desire, of his consciousness or unconscious - a point where contradictions are resolved, where incompatible elements are at last tied together or organized around a fundamental or originating contradiction. Finally, the author is a particular source of expression that, in more or less completed forms, is manifested equally well, and with similar validity, in works, sketches, letters, fragments, and so on. Clearly, Saint Jerome's four criteria of authenticity (criteria that seem totally insufficient for today's exegetes) do define the four modalities according to which modern criticism brings the author function into play.

The question then becomes: How can one reduce the great peril, the great danger with which fiction threatens our world? The answer is: One can reduce it with the author. The author allows a limitation of the cancerous and dangerous proliferation of significations within a world where one is thrifty not only with one's resources and riches but also with one's discourses and their significations. The author is the principle of thrift in the proliferation of meaning. As a result, we must entirely reverse the traditional idea of the author. We are accustomed, as we have seen earlier, to saying that the author is the genial creator of a work in which he deposits, with infinite wealth and generosity, an inexhaustible world of significations. We are used to thinking that the author is so different from all other men, and so transcendent with regard to all languages that, as soon as he speaks, meaning begins to proliferate, to proliferate indefinitely.

The truth is quite the contrary: the author is not an indefinite source of significations that fill a work; the author does not precede the works; he is a certain functional principle by which, in our culture, one limits, excludes, and chooses; in short, by which one impedes the free circulation, the free manipulation, the free composition, decomposition, and recomposition of fiction. In fact, if we are accustomed to presenting the author as a genius, as a perpetual surging of invention, it is because, in reality, we make him function in exactly the opposite fashion. One can say that the author is an ideological product, since we represent him as the opposite of his historically real function. When a historically given function is represented in a figure that inserts it, one has an ideological production. The author is therefore the ideological figure by which one marks the manner in which we fear the proliferation of meaning.

From Michel Foucault, “What Is an Author?” (1969)