The paper discusses Kant‘s distinction between appearances and things in themselves, phenomena and noumena, and the problem of affection. The difference between appearances and things in themselves is understood as a methodological difference between two manners in which an object can be viewed: either as an appearance, or as a thing in itself. The author claims that this double-aspect view is a consequence of Kant‘s conception of space and time as a priori forms of sensibility. The difference between phenomena and noumena, on the other hand, cannot be explained only by the double-aspect view; Kant understands it also as an ontological difference between two different kinds of objects. The paper concludes with a discussion of the problem of affection. The author claims that this problem is a pseudo-problem if we understand the difference between appearances and things in themselves as double-aspect view. Kant had maintained only an empirical affection. Passages in which Kant seems to advocate a transcendental affection can be brought in line with Kant‘s critical philosophy.