An Outline of Esoteric Science by Rudolf Steiner; Translated by Catherine E. Creeger

This is the sequel to Theosophy. It is strongly recommended to begin with Theosophy. When the Agriculture Course was originally delivered, its audience was not primarily farmers but the attendees were expected to be fully familiarized with the contents of Theosophy and Esoteric Science (the sequel to Theosophy). "Esoteric science is the science of what takes place esoterically, in the sense that it is perceived not outside in nature but where one’s soul turns when it directs its inner being toward the spirit. Esoteric science is the opposite and counterpart of natural science." ―Rudolf Steiner This is essential reading for all serious students of esoteric spirituality.