  In the two editions of CPR, there are seven main discussions of the mind. The first is in the Transcendental Aesthetic, the second is in what is usually called the Metaphysical Deduction (for this term, see below). Then there are two discussions of it in the first-edition TD, in parts 1 to 3 of Section 2 (A98 up to A110) and in the whole of Section 3  (A115-A127)[2]  and two more in the second-edition TD, from B129 to B140 and from B153 to B159, the latter seemingly added as a kind of supplement. The seventh and last is found in the first edition version of Kant’s attack on the Paralogisms, in the course of which he says things of the utmost interest about consciousness of and reference to self. (What little was retained of these remarks in the second edition was moved to the completely rewritten TD.) For understanding Kant on the mind and self-knowledge, the first edition of CPR is far more valuable than the second edition. Kant’s discussion proceeds through the following stages.