Volition is accepted today in psychological circles to be the function by which a person consciously chooses the planning and performing of a certain action. We can consider as equivalent to that what Aristotle calls “the appetitive part of the soul” (432b), in which he includes wish (voulesis), desire (epithumia), and appetite (orexis). He says that these form a faculty distinct from the others he enumerates, in respect of both reason and potentialities.