Βούλησις

"Wish and choice are practical faculties of the soul. [...] And wish belongs by itself to the rational soul itself, while choice belongs to the part [of the soul] which is involved with lack of reason. For when the soul is out of [or beyond] becoming, it operates only according to wish, for [in this case] it is only in the good.¹ But when it is in becoming, since the irrational faculties are involved with it, [...] then it has choice due to its involvement with the irrational. That is why sometimes it is leans toward² unreason and sometimes toward reason, and it chooses one before the other. These [are] irrational faculties of the soul."³