A human being has so many skins inside, covering the depths of the heart. We know so many things, but we don't know ourselves! Why, thirty or forty skins or hides, as thick and hard as an ox's or bear's, cover the soul. Go into your own ground and learn to know yourself there.
If, as is natural, you focus on the corruption and on those threatened institutions that are trying to prevent change - even though they don't really know what they're trying to prevent - then you can get pessimistic.

