Searching Rudolf Steiner Lectures by Date
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- Title: Lecture: Christ in Relation to Lucifer and Ahriman
- will be concave underneath. In this depression there will be another
- Title: The Building at Dornach (Bn/GA 289): Lecture II: Bau Lecture II
- can place that which was convex into the concave form of the last pillar
- Title: Warmth Course: Lecture I
- allowed to fall on a concave mirror, under proper conditions they
- become parallel. When these are picked up by another concave mirror
- Title: Arts and Their Mission: Lecture VIII
- it; he focuses on what is concave; hollows out the wood. On the other
- Title: Spiritual Ground: Lecture II: Spiritual Disciplines of Yesterday: Yoga
- shows these concave forms?” No-one would say such a thing. Any
- Title: Colour: Part Three: Colours as Revelations of the Psychic in the World
- example, the man's eyes out of the wood. Whatever is concave he must
- Title: Eurythmy as Visible Singing: Lecture 7: Musical Physiology; the Point of Departure; Intervals; Cadences
- in reality nothing but an outer, concave image of what exists in inner,
- Title: Health and Illness I: Lecture V: The Eye; Colour of the Hair
- prescribed with lenses that are concave. These will compensate
- Title: Sound Outlook: Lecture II: The Building at Dornach
- I mean this as a matter of convex and concave, of course.
- Title: Evolution of Consciousness: Lecture VII: The Interplay of Various Worlds
- a concave mirror. You would certainly be loath to have a face as you
- Title: Esoteric Development: Lecture II: The Psychological Foundations of Anthroposophy
- whether one has a plane, concave, or convex mirror. But the being of
- Title: Astronomy Course: Lecture X
- encompassing sphere, — we concave it in the first place
- Title: Astronomy Course: Lecture XVII
- the convex into the concave. Looking into the Sun, it is as
- surface which is concave must be bent convex, so that the
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