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Semple was an advocate and translator of Kant.
Saint Augustine
John Passmore
Henry B. Veatch
Mary Campbell Smith
Aeon J. Skoble
Michael Huemer
Mo Tzu
Helmut Schoeck
Confucius
Plutarch
Epictetus
Chuang Tzu
Jean-Jacques Rousseau
Gershom Carmichael
Alexander Broadie
Alan Ryan
Benedict de Spinoza
Jeremy Shearmur
Rachel Ferguson
Virginia Postrel
Roderick T. Long
René Descartes
Mortimer J. Adler
Bas van der Vossen
William Godwin
Eric Schliesser
Andrew R. Scoble
Thomas Hobbes
Eric Mack
Nicholas Capaldi
Jack Russell Weinstein
Elaine Sternberg