When the Sidonian sophist Otherwise unknown. was once showing. his powers at Athens, and was voicing his own praise to the effect that he was acquainted with all philosophy—but I may as well cite his very words: “If Aristotle calls me to the Lyceum, I shall go with him; if Plato calls me to the Academy, I shall come; if Zeno calls, I shall spend my time in the Stoa; if Pythagoras calls, I shall hold my tongue.” Alluding to the Pythagorean vow of silence. Well, Demonax arose in the midst of the audience and said: “Ho” (addressing him by name), “Pythagoras is calling you!”