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Luigi Turco is Professor of Philosophy at the University of Bologna.
Francisco Suárez
James Beattie
Mary Campbell Smith
Evelyn Shirley Shuckburgh
Thomas Reid
Epictetus
Brian Kogelmann
Sir James Mackintosh
Blaise Pascal
Marcus Aurelius Antoninus
Carlo Lottieri
John Locke
Mortimer J. Adler
David Conway
Confucius
Thales
David W. Carrithers
Michael J. Seidler
Avicenna
Brian Satterfield
Mo Tzu
Dugald Stewart
Douglas Den Uyl
Plotinus
Joseph Butler
Peter Carl Mentzel
Immanuel Kant
William Godwin
Daniel L. Dreisbach
Ayn Rand
Roderick T. Long
Michael Silverthorne