Utriusque Cosmi, Maioris scilicet et Minoris, metaphysica, physica, atque technica Historia, (The metaphysical, physical, and technical history of the two worlds, namely the greater and the lesser), was written by the English Paracelsian physician, astrologer, mathematician, and cosmologist Robert Fludd, (17 January 1574 – 8 September 1637). The work, published in Germany between 1617 and 1621, lays out Fludd’s occult cabalist philosophy, and hermetic approaches to knowledge. In opposition to the German mathematician, astronomer, and astrologer Johannes Kepler (December 27, 1571 – November 15, 1630), Fludd argued that the hermetic or alchemy approach to knowledge is deeper than the mathematical. Fludd and Kepler’s opposition occur at the point of scientific revolution in the 17th century in which older mystic and metaphysical knowledge was being replaced by the modern material theories of Kepler and later Sir Isaac Newton (25 December 1642 – 20 March 1727).