Jeff McMahan

I recall my eventual dissertation supervisor, Bernard Williams, saying to me once that he didn’t think that anyone could do ethics competently without a thorough grounding in logic. I nodded solemnly as if to register agreement, though I had never spent a minute studying logic and didn’t even know what a modus ponens was—in fact, I still don’t, though I know it has something to do with p and q.

Thomas S. Petersen and Jesper Ryberg, Normative ethics: 5 questions, United States, 2007, p. 69