individualization of the general force of nature, _Vulcanus_; so also to men. Disease is a checking of this vital principle by contrary powers, which are partly of a terrestrial and partly of a sidereal nature; and the choice of medicines is to be determined by their ability to support the Archeus against its enemies. Man is, however, superior to nature--he is not merely the universal animal, inasmuch as he is completely that which other beings are only in a fragmentary way; but, as the image of God, he has also an eternal element in him, and is capable of attaining perfection through the exercise of his rational judgment. Paracelsus distinguishes three worlds: the elemental or terrestrial, the astral or celestial, and the spiritual or divine. To the three worlds, which stand in relations of sympathetic interaction, there correspond in man the body, which nourishes itself on the elements, the spirit, whose imagination receives its food, sense and thoughts, from the spirits of the stars, and, finally, the immortal soul, which finds its nourishment in faith in Christ. Hence natural philosophy, astronomy, and theology are the pillars of anthropology, and ultimately of medicine. This fantastic physic of Paracelsus found many adherents both in theory and in practice.[2] Among those who accepted and developed it may be named R. Fludd (died 1637), and the two Van Helmonts, father and son (died 1644 and 1699). [Footnote 1: On Paracelsus cf. Sigwart, _Kleine Schriften_, vol. i. p. 25 seq.; Eucken, _Beiträge zur Geschichteder neueren Philosophie_, p. 32 seq.; Lasswitz, _Geschichte der Atomistik_, vol. i. p. 294 seq.] [Footnote 2: The influence of Paracelsus, as of Vives and Campanella, is evident in the great educator, Amos Comenius (Komensky, 1592-1670), whose pansophical treatises appeared in 1637-68. On Comenius cf. Pappenheim, Berlin, 1871; Kvacsala, Doctor's Dissertation, Leipsic, 1886; Walter Mueller, Dresden, 1887.] Beside the Platonic philosophy, others of the ancient systems were also revived. Stoicism was commended by Justus Lipsius (died 1606) and Caspar Schoppe (Scioppius, born 1562); Epicureanism was revived by Gassendi (1647), and rhetorizing logicians went back to Cicero and Quintilian. Among the latter were Laurentius Valla (died 1457); R. Agricola (died 1485); the Spaniard, Ludovicus Vives (1531), who referred inquiry from the authority of Aristotle to the methodical utilization of experience; and Marius Nizolius (1553), whose _Antibarbarus_ was reissued by Leibnitz in 1670.