[2] Regarding thought, they say that it is something modified in the air, varied according to topic, and widened by cultivation; thus that the ideas in thoughts are images appearing, meteor-like, in the air; and that the memory is a tablet on which they are imprinted. They do not know that thought goes on in purely organic substances just as much as sight and hearing do. Only let them examine the brain, and they will see that it is full of such substances; injure them and you will become delirious; destroy them and you will die. But what thought and memory are see above at n. 279 end. [3] Regarding life, they know it only as an activity of nature, which makes itself felt in different ways, as a live body bestirs itself organically. If it is remarked that nature is alive then, they deny this, and say it enables to life. If one asks, "Is life not dissipated then on the death of the body?" they reply that life remains in a particle of air called the soul. Asked "What then is God? Is He not life itself?" they keep silence and do not want to utter what they think. Asked, "Would you grant that divine love and wisdom are life itself?" they answer, "What are love and wisdom?" For in their fallacies they do not see what these are or what God is. These things have been adduced that it may be seen how man is infatuated by prudence of his own because he draws all conclusions then from appearances and thus from fallacies. 316.* By one's own prudence one is persuaded and confirmed that all good and truth are from man and in man, because a man's own prudence is his intellectual proprium, flowing in from self-love, which is his volitional proprium; proprium inevitably makes everything its own; it cannot be raised above doing so. All who are led by the Lord's divine providence are raised above the proprium and then see that all good and truth are from the Lord, indeed see that what in the human being is from the Lord is always the Lord's and never man's. He who believes otherwise is like one who has his master's goods in his care and claims them himself or appropriates them--he is no steward, but a thief. As man's proprium is nothing but evil, he also immerses the goods in his evil, by which they are destroyed like pearls thrown into dung or into acid. * So numbered in the Latin original.