Full Idea
In Derrida's later work we find him moving explicitly towards a belief in the undeconstructability of justice, as he puts it, which is an overarching value that cannot be relativised.
Gist of Idea
Derrida came to believe in the undeconstructability of justice, which cannot be relativised
Source
report of Jacques Derrida (later work [1980]) by Simon Critchley - Interview with Baggini and Stangroom p.191
Book Reference
Baggini,J/Stangroom,J: 'New British Philosophy' [Routledge 2002], p.191
A Reaction
A nice corrective to the standard Anglo-Saxon assumption that Derrida is an extreme (and stupid) relativist. The notion of 'undeconstructability' is nice, just as Descartes found an idea that resisted the blasts of scepticism.