The thesis that instrumental rationality is the only kind of practical rationality is often taken to be a “Humean” thesis, though, as we’ve seen (§4.1), there are several ways in which this thesis could be understood.  One could take the thesis just to be an assertion of the Desire-Based Theory.  One could also take the thesis to specify that instrumental coherence is the only requirement of practical rationality.  However, it is doubtful that Hume held either of these views.  