Abstract
The article approaches Salomon Maimon’s reinterpretation of the notions of the thing in itself and the given within the framework of criticism. For Maimon they do not refer to a transcendence that is directly unattainable by knowledge. In this attempt, he tries to explain the given on the basis of the action of constitutive understanding. With this, he triggers the passage from transcendental Kantian philosophy to the idealism of Fichte. Nonetheless, his position faces the subsequent problem of explaining how the constitution of the given from understanding (infinite) can become compatible with the criticism it takes on. On affirming that an uncognoscible item is the basis of knowledge, namely, infinite understanding, he set aside the explanation of knowledge in terms of what is revealed in it and in doing so would be resorting to external uncognoscible conditions.