Stephen Darwall

Some recent writers on practical reasoning have had it that reasoning about what to do differs in logical structure from theoretical reasoning. In particular, Anthony Kenny and G.E.M. Anscombe have argued that there are permissible inferences in practical reasoning which lack analogues in theoretical reasoning. Such discussions seem inevitably to draw their impetus from what Aristotle had to say on the topic, both in the Nicomachean Ethics and elsewhere.