  Cardano wrote and published a vast amount of works, in the most disparate fields of knowledge, especially medicine, mathematics, astrology and natural history. His strictly philosophical treatises include: De arcanis aeternitatis (“The Mysteries of Eternity”, began at the end of the 1530s and published partially in the posthumous Opera omnia in 1663); De consolatione (“On Consolation”, 1543); De sapientia (“On Wisdom”, 1544); De animi immortalitate (“On the Immortality of the Soul”, 1545); De subtilitate (“On Subtlety”, 1550, 1554, 1560), and its twin book De rerum varietate (“On the Variety of Things”, 1557); Theonoston (“Divine Knowledge”, written in the middle of 1550s and published posthumously in 1617 and 1663); De utilitate ex adversis capienda (“On Gaining Advantage from Misfortunes”, 1561); Encomium Neronis (“Praise of Nero”); Dialectica (“Dialectic”), De uno (“On the One”), Tetim seu de humana conditione (“Tetim, or On the Human Condition”), De minimis et propinquis (“On Those Things which are Smallest and Closest to Hand”), De summo bono (“On the Highest Good”) and Guglielmus, sive de morte (“William, or On Death”), all published in 1562; Antigorgias dialogus sive de recta vivendi ratione (“Anti-Gorgias, or On the Right Way to Live”), Hyperchen (“Being”) and De Socratis studio (“On the Earnestness of Socrates”), published in 1566; Proxeneta, seu de prudentia civili (“The Mediator, or Civic Prudence”, published posthumously in 1627 and 1663); Paralipomena (“Supplements”, begun in 1561 and published posthumously in 1663). Other works were published posthumously in the Opera omnia edited by the French physician Charles Spon (1609–1684) in 1666: Hymnus, seu canticum ad Deum (“A Hymn, or a Canticle to God”); Mnemosynon (“Memorial”); Norma vitae consarcinata (“A Patched-Up Rule of Life”); De optimo vitae genere (“On the Noblest Kind of Life”); Dialogus Hieronymi Cardani et Facii Cardani ipsius patris (“Dialogue between Girolamo Cardano and His Father Fazio”); De natura liber unicus (“A Single Book on Nature”).