2932. By a tacit speech as well it was also granted me to tell them that there is nothing at all that a human being knows, for example, not even how the muscles produce actions, when yet in this as about everything else that pertains only to the body, there are countless things we do not know, and that in the body alone there are the deepest secrets of all the sciences, yet they know not even the least of them. And nevertheless they think that unless they know and then grasp, or as they say, perceive by sense, how there are spiritual things, which are inside of that realm (where there are still more countless numbers of things we know nothing about), [they cannot believe]. What then will come of this but denial of everything, and thus something foggy containing nothing?-into which they were transformed, so to speak, because it was congruent with their fantasized mental images? 1748, 26 Aug.