ideis, independenter a cogitationibus sensuum confusis, quae inclinationum ejus sunt causae.... Id, quod occasionem dedit, ut duae istae diversae voluntatis propensiones pro duobus diversis appetitibus sumerentur, est, quod saepissime unus alteri opponatur, quia propositum, quod mens superaedificat propriis suis perceptionibus, non semper consentit cum cogitationibus, quae menti a corporis dispositione suggeruntur, per quam saepe obligatur ad aliquid volendum, dum ratio ejus earn aliud optare facit.

Out of the dim reminiscence of such views there finally arose Kant's doctrine of the Autonomy of the Will, which, as the mouth-piece of Pure, Practical Reason, lays down the law for all rational beings as such, and recognises nothing but formal motives, as opposed to material; the latter determining only the lower faculty of desires, to which the higher is hostile.