John of Salisbury’s "Policraticus" or "On the Frivolities of Courtiers and the Footprints of Philosophers". Chapters 9 - 12
Translated from Ioannis Saresberiensis episcopi Carnotensis Policratici sive De nugis curialium et vestigiis philosophorum libri 8; recognovit et prolegomenis, apparatu critico, commentario, indicibus instruxit Clemens C.I. Webb. 1909. Oxonii E Typographeo Clarendoniano https://archive.org/details/ioannissaresberi01johnuoft/page/n13/mode/2up
Translated from Latin by Professor dr. Gintautas Vyšniauskas, Klaipeda University.
Key Words: John of Salisbury, Polikraticus, deception, magic, astrology