Deconstruction

Deconstruction (or deconstructionism^[1]) is an approach, introduced by French philosopher Jacques Derrida, which rigorously pursues the meaning of a text to the point of exposing the supposed contradictions and internal oppositions upon which it is founded - showing that those foundations are irreducibly complex, unstable, or impossible. It is an approach that may be deployed in philosophy, literary analysis, or other fields.

Deconstruction generally tries to demonstrate that any text is not a discrete whole but contains several irreconcilable and contradictory meanings; that any text therefore has more than one interpretation; that the text itself links these interpretations inextricably; that the incompatibility of these interpretations is irreducible; and thus that an interpretative reading cannot go beyond a certain point. Derrida refers to this point as an aporia in the text, and terms deconstructive reading "aporetic." J. Hillis Miller has described deconstruction this way: “Deconstruction is not a dismantling of the structure of a text, but a demonstration that it has already dismantled itself. Its apparently-solid ground is no rock, but thin air

Sources of deconstruction

Deconstruction emerged from the influence upon Derrida of several thinkers, including:

• Edmund Husserl. The greatest focus of Derrida's early work was on Husserl, from his dissertation (eventually published as The Problem of Genesis in Husserl's Philosophy), to his "Introduction" to Husserl's "Essay on the Origin of Geometry," to his first published paper, "'Genesis and Structure' and Phenomenology" (in Writing and Difference), and lastly to his important early work, Speech and Phenomena.
• Martin Heidegger. Heidegger's thought was a crucial influence on Derrida, and he conducted numerous readings of Heidegger, including the important early essay, "Ousia and Gramme: Note on a Note from Being and Time" (in Margins of Philosophy), to his study of Heidegger and Nazism entitled Of Spirit, to a series of papers entitled "Geschlecht."
• Sigmund Freud. Derrida has written extensively on Freud, beginning with the paper, "Freud and the Scene of Writing" (in Writing and Difference), and a long reading of Freud's Beyond the Pleasure Principle in his book, The Post Card. Jacques Lacan has also been read by Derrida, although the two writers to some extent avoided commenting on each others' work.
• Friedrich Nietzsche. Nietzsche's singular philosophical approach was an important forerunner of deconstruction, and Derrida devoted attention to his texts in Spurs: Nietzsche’s Styles and The Ear of the Other.
• André Leroi-Gourhan. Of Grammatology makes clear the importance of Leroi-Gourhan for the formulation of deconstruction and especially of the concept of différance, relating this to the history of the evolution of systems for coding difference, from DNA to electronic data storage.
• Ferdinand de Saussure. Derrida's deconstruction in Of Grammatology of Saussure's structural linguistics was critical to his formulation of deconstruction, and his insertion of linguistic concerns into the heart of philosophy.

[Theory

Derrida began speaking and writing publicly at a time when the French intellectual scene was experiencing an increasing rift between what could broadly be called "phenomenological" and "structural" approaches to understanding individual and collective life. For those with a more phenomenological bent the goal was to understand experience by comprehending and describing its genesis, the process of its emergence from an origin or event. For the structuralists, this was a problematic and misleading avenue of interrogation, and the "depth" and originality of experience could in fact only be an effect of structures which are not themselves experiential. It is in this context that in 1959 Derrida asks the question: Must not structure have a genesis, and must not the origin, the point of genesis, be already structured in order to be the genesis of something?^[4]

In other words, every structural or "synchronic" phenomenon has a history, and the structure cannot be understood without understanding its genesis.^[5] At the same time, in order that there be movement, or potential, the origin cannot be some pure unity or simplicity, but must already be articulated—complex—such that from it a "diachronic" process can emerge. This originary complexity must not be understood as an original positing, but more like a default of origin, which Derrida refers to as iterability, inscription, or textuality.^[6] It is this thought of originary complexity, rather than original purity, which destabilises the thought of both genesis and structure, that sets Derrida's work in motion, and from which derive all of its terms, including deconstruction.^[7]

Derrida's method consisted in demonstrating all the forms and varieties of this originary complexity, and their multiple consequences in many fields. His way of achieving this was by conducting thorough, careful, sensitive, and yet transformational readings of philosophical and literary texts, with an ear to what in those texts runs counter to their apparent systematicity (structural unity) or intended sense (authorial genesis). By demonstrating the aporias and ellipses of thought, Derrida hoped to show the infinitely subtle ways that this originary complexity, which by definition cannot ever be completely known, works its structuring and destructuring effects.^[8]

Derrida initially resisted granting to his approach the overarching name "deconstruction," on the grounds that it was a precise technical term that could not be used to characterise his work generally. Nevertheless, he eventually accepted that the term had come into common use to refer to his textual approach, and Derrida himself increasingly began to use the term in this more general way.

[ Différance

Crucial to Derrida's work is the concept of différance, a complex term which refers to the process of the production of difference and deferral. According to Derrida, all difference and all presence arise from the operation of différance. He states that:

To "deconstruct" philosophy [...] would be to think – in the most faithful, interior way – the structured genealogy of philosophy's concepts, but at the same time to determine – from a certain exterior [...] – what this history has been able to dissimulate or forbid [...] By means of this simultaneously faithful and violent circulation between the inside and the outside of philosophy [...a] putting into question the meaning of Being as presence.^[9]

To deconstruct philosophy is therefore to think carefully within philosophy about philosophical concepts in terms of their structure and genesis. Deconstruction questions the appeal to presence by arguing that there is always an irreducible aspect of non-presence in operation. Derrida terms this aspect of non-presence différance. Différance is therefore the key theoretical basis of deconstruction. Deconstruction questions the basic operation of all philosophy through the appeal to presence and différance therefore pervades all philosophy. Derrida argues that différance pervades all philosophy because "What defers presence [...] is the very basis on which presence is announced or desired in what represents it, its sign, its trace".^[10] Différance therefore pervades all philosophy because all philosophy is constructed as a system through language. Différance is essential to language because it produces "what metaphysics calls the sign (signified/signifier)".^[11]

In one sense, a sign must point to something beyond itself that is its meaning so the sign is never fully present in itself but a deferral to something else, to something different. In another sense the structural relationship between the signified and signifier, as two related but separate aspects of the sign, is produced through differentiation. Derrida states that différance "is the economical concept", meaning that it is the concept of all systems and structures, because "there is no economy without différance [...] the movement of différance, as that which produces different things, that which differentiates, is the common root of all the oppositional concepts that mark our language [...] différance is also the production [...] of these differences."^[10] Différance is therefore the condition of possibility for all complex systems and hence all philosophy.

Operating through différance, deconstruction is the description of how non-presence problematises the operation of the appeal to presence within a particular philosophical system. Différance is an a-priori condition of possibility that is always already in effect but a deconstruction must be a careful description of how this différance is actually in effect in a given text. Deconstruction therefore describes problems in the text rather than creating them (which would be trivial). Derrida considers the illustration of aporia in this way to be productive because it shows the failure of earlier philosophical systems and the necessity of continuing to philosophise through them with deconstruction 

http://en.wikipedia.org/wiki/Deconstruction 

.