Callicles
484 – late 5th century BC ) was an ancient Athenian political philosopher best remembered for his role in Plato’s dialogue "Gorgias" , where he "presents himself as a no-holds-barred , bare-knuckled , clear-headed advocate of "Realpolitik"" . 
<triplet> Plato <subj> Gorgias <obj> notable work <triplet> Gorgias <subj> Plato <obj> author