Immanuel Kant's lectures on psychology from the period 1788-1789 with an introduction by the renowned writer on occult philosophy, Carl du Prel.

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"We will not talk here dogmatically of the state of the soul before birth and after death; although you can talk far more about what you know nothing of than about what you know something about. Accordingly we will determine here the limits of human reason so that false sophistry under the appearance of rational cognition cannot undermine our true principles in view of the practical."