The theory had a great heritage, and made a lot of sense, although it produced little, only, accidentally, discovery of phosphorus. Isaac Newton searched for the philosophers’ stone, and he followed a great many others. Hermes Trismegistus, Nicolas Flamel, Paracelsus, Jābir ibn Hayyān, Albertus Magnus, Roger Bacon, Heinrich Cornelius Agrippa, John Faustus, and Tycho Brahe. They were geniuses and alchemists, and this made them heretics, so they tried to keep their work secret, and to disguise what they learned in symbols and allegories that only geniuses would understand.