explain the Instrumentist features of the De Anima to which Nuyens drew attention without the resort to the apparatus of Nuyens’ own theory or some revised form of it
This passage interrogates whether Aristotle’s hylomorphic psychology is internally consistent or whether ‘Instrumentist’ phases requiring non-hylomorphic explanation reveal developmental tensions in the De Anima.
, De Anima (On the Soul), -350thesis