[303] Kant, "First Principles of Ethical Metaphysic," 3rd edition, p. 105.
[304] D. Tiedemann, "Disputatio de quæstione, quæ fuerit artum magicarum origo." Marb. 1787. A prize-essay written for the Göttingen Society.
[305] Here and there, Plotinus betrays a more correct knowledge, for instance, "Enn." ii. lib. iii. c. 7; "Enn." iv. lib. iii. c. 12, et lib. ix. c. 3.
[306] Delrio, "Disq. mag." L. ii. qu. 2. Agrippa a Nettesheym, "De Vanit. Scient." c. 45.
[307] Roger Bacon already in the thirteenth century said: ... "Quod si ulterius aliqua anima maligna cogitat fertiter de infectione alterius atque ardenter desideret et certitudinaliter intendat, atque vehementer consideret se posse nocere, non est dubium quin natura obediet cogitationibus animæ." (See Rogeri Bacon, "Opus Majus," Londini, 1733, p. 252.)
[308] Theophrastus Paracelsus, Strassburg edition in two folio vols., vol. i, pp. 91, 353, et seqq. and p. 789; vol. ii. pp. 362, 496.
[309] Vol. i. p. 19.
[310] "De occulta philosophia," lib. 1, c. 66.
[311] Ibid. c. 67.
[312] "De occulta philosophia," lib. 1, cc. 66, 67 et 68.