10. The annihilation of all that belongs to us in our own right, carried to great lengths by the Quietists, might equally well be veiled irreligion in certain minds, as is related, for example, concerning the Quietism of Foe, originator of a great Chinese sect. After having preached his religion [80] for forty years, when he felt death was approaching, he declared to his disciples that he had hidden the truth from them under the veil of metaphors, and that all reduced itself to Nothingness, which he said was the first source of all things. That was still worse, so it would seem, than the opinion of the Averroists. Both of these doctrines are indefensible and even extravagant; nevertheless some moderns have made no difficulty about adopting this one and universal Soul that engulfs the rest. It has met with only too much applause amongst the so-called freethinkers, and M. de Preissac, a soldier and man of wit, who dabbled in philosophy, at one time aired it publicly in his discourses. The System of Pre-established Harmony is the one best qualified to cure this evil. For it shows that there are of necessity substances which are simple and without extension, scattered throughout all Nature; that these substances must subsist independently of every other except God; and that they are never wholly separated from organic body. Those who believe that souls capable of feeling but incapable of reason are mortal, or who maintain that none but reasoning souls can have feeling, offer a handle to the Monopsychites. For it will ever be difficult to persuade men that beasts feel nothing; and once the admission has been made that that which is capable of feeling can die, it is difficult to found upon reason a proof of the immortality of our souls.