The wisdom of Rudolf Steiner.

"Along mysterious paths the wisdom treasures of the initiates flowed into poets, artists and thinkers. In the worldview structures of the ancient Greek philosophers we find the secrets of the initiates in the form of concepts and ideas."

Rudolf Steiner

https://steinervertalingen.nl/fondsoverzicht/de-wetenschap-van-de-geheimen-der-ziel/