Tetractys
- Plato, Epinomis, 978.d: "Since Heaven never stops making these bodies ply their course night after night and day..."
- Upanishads, Prasna, First Question, Verses 3-5: "When the time came, Kabandhi Katyayana aproached the sage and said: Master, whence came all..."
- John Dee, Monas Hieroglyphica, Monas and Tetractys: [Visual Content]
- Iamblichus, Life of Pythagoras, P. 80. I swear by him who the tetractys found.: "The tetrad was called by the Pythagoreans every number, because it comprehends in itself all..."
- Zoroaster, Chaldaean Oracles, Verses 25-27: "The Monad first existed, and the Paternal Monad still subsists. When the Monad is extended,..."
- Zoroaster, Chaldaean Oracles, Verses 28-32: "The Mind of the Father said that all things should be cut into three: His will..."