By John Arthur Garraty, Robert A. McCaughey (Chairman, Barnard History Department and former Dean of Faculty, Barnard College, USA)
By Plato, ROBIN WATERFIELD
By David Boucher, Paul Kelly
By Jason Brennan
By Peter Laurie
By Marcuse, Herbert
By Harry S. Stout
By Stuart Sim
By Francois Guizot, Larry Siedentop, William Hazlitt
By Robert Greene
By Himani Bannerji
By Edward Lucas
By Alec G. Hargreaves (Florida State University, USA)
By Thomas Fetzer
By Philip G. Cerny (Professor of Global Political Economy, Professor of Global Political Economy, Rutgers University, Newark)
By Ian Dallas
By John R. Lukacs
By Thomas Banchoff, Mitchell Smith
By Steinar Stjerno (Professor of Social Policy, Universitetet i Oslo)
By Lynn Dobson (University of Edinburgh, UK), Andreas Follesdal
By Sean McGlynn
By Shlomo Sand, Geremy Forman
By Robert. A Denemark, Jonathan Friedman, Barry K. Gills, George Modelski
By William R. Thompson
By Jonathan David Chambers
By David Butler, Anne Sloman
By David Childs
By Matthew Parris
By John Rawls
By Morton Kaplan