Appearance and Appearing

When Hume likens the Mind to a 'theater', it is, more precisely, as a member of the audience.  Thus, when Kant, somewhat belatedly in his career, discusses the processes of 'appearing to oneself', and 'affecting oneself', the image of a 'theater' is Shakespearean, not Humean, i. e. in which one is a performer.  Hence, a sharp distinction can be drawn between passive 'Appearance', and active 'Appearing'.  That distinction is implicit in Spinoza's Active-Passive contrast, and the interaction of Appearing and Appearance informs, notably, Hegel's concept of Self-Recognition, which profoundly influences Marx.  But, aside from Nietzsche's appreciation of the significance of the Appearing, most of post-Kantian philosophy reverts, like Hegel, to the one-sided effort of equating Wisdom with spectating.