The system-building role of the thing-in-itself in Kant's philosophyAbstract
All three meanings of the notion "thing-initself" (object, subject and the transition between them), despite the evident opposition, constitutes the object of the central problem of philosophy in Kant's system. Kant is an innovator in both posing and answering the question. This answer is agnostic but not in the empirical or scientific sense, but rather in the solely philosophical meaning of these notions. The answer to his question — regarding both the world and the human being — is infinite as human freedom of creativity.