CW 324a The Fourth Dimension Lecture 4: Representing figures of higher dimensions in lower dimensions (Berlin, May 24, 1905) by Rudolf Steiner

CW 205 The Human Being as Body and Soul: Lecture 6 (Dornach, 2 July 1921) by Rudolf Steiner

CW 206: Human Beings as Spiritual Being: Lecture 1: The Twelve Human Senses (Dornach, 22 July 1921) by Rudolf Steiner

CW 206: Human Beings as Spiritual Being: Lecture 2: Moral world order and Natural necessity... (Dornach, 23 July 1921) by Rudolf Steiner

CW 206: Human Beings as Spiritual Being: Lecture 3: Memory and Love. The Threefold Human Being... (Dornach, 24 July 1921) by Rudolf Steiner

CW 206: Human Beings as Spiritual Being: Lecture 4: How modern science developed out of Scholasticism (Dornach, 5 August 1921) by Rudolf Steiner

CW 206: Human Beings as Spiritual Being: Lecture 5: Haeckels 60th birthday. Worldview as medicine... (Dornach, 6 August 1921) by Rudolf Steiner

CW 206: Human Beings as Spiritual Being: Lecture 6: Child development up to puberty (Dornach, 7 August 1921) by Rudolf Steiner

CW 206: Human Beings as Spiritual Being: Lecture 7: The Human Organization of Physical, Etheric, Astral and I bodies (Dornach, 12 August 1921) by Rudolf Steiner

CW 206: Human Beings as Spiritual Being: Lecture 8: Thoughts and memories and the world of the Hierarchies (Dornach, 13 August 1921) by Rudolf Steiner

CW 206: Human Beings as Spiritual Being: Lecture 9: The Connection between the human soul and spirit and physical corporeality. Evil (Dornach, 14 August 1921) by Rudolf Steiner