8. What is Mortal in Man?
Know Thyself! — the saying that already stood on the Apollonian sanctuary. But self-knowledge, which is most intimately connected with the path into the spiritual worlds, is, so to speak, the most, most difficult! Even the most external self-knowledge is something difficult for man. The philosopher Ernst Mach gives a curious example of this. In his “Analysis of Sensations” he reveals how he fared with regard to self-knowledge even in the most superficial area. He recounts how he was once crossing the street and saw his own image in a tilted mirror. He was shocked by the ugly, repulsive face that looked back at him, and lo and behold: it was his own. And when he was already a professor, something similar happened to him. He came tired from a trip and boarded a bus. On the other side, he saw a man get on, and he thought: What kind of dried-up schoolmaster gets on there! And again, the person who got on the bus opposite him turned out to be himself; he had seen himself in a mirror. And he says: So I knew the profession of Habirus better than my own. We see from this case that one can even be a famous professor and have all the qualities and powers of a famous professor and yet not have come very far in terms of the most external self-knowledge.