Abstract:
This text departs from the letter A, in its importance and its centrality in Derrida’s deconstruction. From this initiatic letter, a sign of différance’s “mute irony” as a syncategorem of Derrida’s thought, we will try to follow the way in which it presents itself to Contemporary Philosophy as a kind of earthquake, a quake and a new propulsion. Seismographies tries therefore to recognise, in the posture and development of this letter “A”, the way in which Derrida’s work shakes up at its base the domain of concepts, , summoning up the urgency and responsibility of philosophy, of writing and of thought. In this sense it is intended to follow the lines of development of a leading letter, which marked, from beginning to end and in all directions, Derrida’s thought as an idiom, as a philosophical revolution, as a seismographie.
Keywords:
Deconstruction; Derrida; Différance; Ethics