I read [Deleuze's] Logic of Sense a long time ago, 30 or ...

I read [Deleuze's] Logic of Sense a long time ago, 30 or 34 years ago, in fact I was in prison when I read Logic of Sense, and I think that it is reading Logic of Sense that permitted me to live in prison. Logic of Sense allowed me to live in prison and to adopt an ethics of prison. What I call an ethics of  prison is one which permits me to cultivate a virtue, for me an ethics cultivates a virtue.

Bernhard Stiegler, speaking in a seminar