Left, Epicurus: Photograph taken by courtesy of the British Museum; upper middle, Plato: National Archaeological Museum, Athens, Greece; right, Socrates: Roma, Musei Capitolini
Trái, Epicurus: Photograph taken by courtesy of the British Museum; chính giữa phía trên, Plato: National Archaeological Museum, Athens, Greece; phải, Socrates: Roma, Musei Capitolini