Abstract

Practical wisdom is the sine qua non of good conduct for Aristotelian virtue ethicists. Aristotelians conceive it as the virtue responsible for the intellectual side of good conduct, which involves having the right goal and deliberating well about what fulfils that goal, among other tasks. But is there any such trait as practical wisdom? Given the diversity of jobs practical wisdom is asked to do (seven goals are often enumerated), there may be a cluster of traits corresponding to what Aristotelians are talking about, so there really isn’t one trait. In this paper, I defend a traditional Aristotelian position on practical wisdom, arguing that it is one thing despite having different functions. Following Thomas Aquinas, we can see practical wisdom as having parts. Those parts may be psychological components (integral parts) of the trait, or they may be derivative functions (virtual parts), things that someone with practical wisdom is also able to do because they have practical wisdom. Still, practical wisdom is one because it is a trait that functions to enable us to pursue the good as good; it possesses what I will call here ‘practical unity’ as the master virtue of praxis or acting well full stop.