1793. I have been instructed that it is these who constitute the phlegm of the brain, which tends to obstruct the sieve-like layer, causing the waste fluid of the brain to stagnate and bring on dull-wittedness, and other insanities. I was told that it was this kind of people who make it a rule to cause dissensions and hostilities among all others, or, as the saying goes, "divide and rule," without any conscience, as many politicians do. So they consider it wisdom [to be able to incite] others to hostilities, intense conflicts and hatreds. Now these are entirely superficial people because, as said, they block off the breathing through the nostrils, so that it is redirected through the mouth and then into the pharynx, thus off of the usual, natural path of breathing, which is through the nostrils because of the harmonious relation of the brain and its animation with things outside. So they disrupt the communication of inward with outward elements.