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Semple was an advocate and translator of Kant.
Jeremy Bentham
Epictetus
Peter Carl Mentzel
Benedict de Spinoza
St. Thomas Aquinas
Tibor R. Machan
Samuel Gregg
Charlotte C. Thomas
Avicenna
Chuang Tzu
William George Pogson Smith
Michael Huemer
Benjamin Hoffmann
Samuel Fleischacker
Jeremy Shearmur
Virginia Postrel
Michael Silverthorne
Panaetius
Luigi Turco
Plato
Lewis Amherst Selby-Bigge
Ralph C. Hancock
Carlo Lottieri
Francisco Suárez
Stuart D. Warner
James Mill
David W. Carrithers
John Stuart Mill
Sir James Mackintosh
Mary Campbell Smith
Rachel Ferguson
Plutarch