Witnesses are unanimous: Kant didn’t sweat. Or, he sweat as little as possible. Jachmann tells us that in the summer Kant would walk very slowly to avoid even the slightest drop of perspiration. Wasianki confirms that “Kant did not sweat, neither by night nor by day.” When Kant couldn’t avoid perspiring, even by wearing light clothes, he stayed in the shade, as if he were waiting for somebody, until the sweat vanished. If he noticed any sweat on him he talked about this fact very seriously, as if it were a very melancholy incident.