Note 8 — Chapter III · THE SPHINX'S RIDDLE.
Reading edition
This distinction of Kant's is not strictly original. Its germ is in Plato, and Voltaire set all Europe laughing at Maupertuis, who had vaguely stated that "nous vivons dans un monde ou rien de ce que nous apercevons ne ressemble à ce que nous apercevons." Whether Kant was acquainted or not with Maupertuis' theory is, of course, difficult to say; at any rate, he resurrected the doctrine, and presented idealism for the first time in a logical form.