0.25 Bruce McComiskey, Gorgias and the Art of Rhetoric: Toward a Holistic Reading of the Extant Gorgianic Fragments, Rhetoric Society Quarterly, 1997.

{ plato sophists greek socrates }	0.25
{ rhetoric rhetorical classical speech }	0.11
{ human man nature truth }	0.07
{ fact case evidence made }	0.05