   For Farabi, it is the faculty of will that is responsible for these desires and dislikes that occur in sensation and imagination, ultimately motivating the social and political behavior of the individual (Walzer, 171–173). Farabi distinguishes between what must be the automatic response of animals to the affects created in their senses and imagination, and the conscious and considered response of human beings, assisted by their rational faculty. The former response is attributed to “will” in general (irâdah), the latter to “choice” (ikhtiyâr) (Walzer, 205).