Record: listeners' notes Written from listeners' notes, summaries or memory; the wording is the note-taker's as much as Steiner's. Evidence: «Notes from Mathilde Scholl 1904–1906»
Notes from Mathilde Scholl 1904–1906
GA 91 — 15 September 1906
21. The Meaning of the Golden Triangle

(0) is the center of force, the starting point at which the force rests; (a) and (b) are the two poles that radiate from this starting point in different directions.
Evolution of the universe: exponentiation
Contraction of the universe: root extraction.