Full Idea
Even the good is implicitly violent (against evil), so there can be no 'pure' good.
Gist of Idea
The good is implicitly violent (against evil), so there is no pure good
Source
Jacques Derrida (works [1990]), quoted by Barry Stocker - Derrida on Deconstruction
Book Reference
Stocker,Barry: 'Derrida on Deconstruction' [Routledge 2006], p.126