ABSTRACT
In his Critique of Practical Reason, Kant emphasises that “it is always only one and the same reason which, whether for a theoretical or a practical aim, judges according to a priori principles”. Kant argues that there is a primacy of practical reason that affords some theoretical propositions to be sufficiently authenticated by practical reason if they belong to the latter’s interest, notably the existence of God and the immortality of the soul. Appearances are that which sensibly appear, i.e. that which is empirically represented in an intuition. Appearances, in other words, are the content of empirical representations that are intuition. It is indeed vital for the thriving of practical reason in terms of self-determination and thus for its pursuing the highest good in acting autonomously under the moral law that its interest is not trumped by a theoretical reason ‘stubbornly pursuing its own interest’.
