From Secret Mystery School #4 · Pages 5, 9
Weird Rules From the Headmaster
Accepted on trial, the students get the school's rules from the headmaster, Pythagoras: no beans, no mirrors next to lights, don't step over crossbars. Every one is a real Pythagorean taboo. Later Pythagoras tells them what it takes to graduate.
- The sign is real but belongs to Plato: tradition says "Let no one ignorant of geometry enter" was written over the door of the Academy. It was Greek, not Latin, and it is first reported by commentators some 900 years later.
- Diogenes Laertius lists "don't step over the beam of a balance", and Iamblichus warns against looking in a mirror beside a lamp. Ancient writers argued over the bean ban: beans cause wind, beans look like the gates of Hades, beans were used for voting.
- Diogenes Laertius gives the rule as "don't stir the fire with a knife" and already reads it the way Sophia does: don't stir up the passions of the powerful.
- Arithmetic, geometry, music and astronomy, the four mathematical arts later called the quadrivium, go back to the Pythagorean Archytas.











