Diogenes Laertius, 10.8
“[Epicurus] used to call Nausiphanes a jellyfish who was illiterate, a cheat and a whore. He used to refer to Plato’s followers as the Dionysus-flatters; he called Aristotle a waste who, after he spent his interitance, fought as a mercenary and sold drugs. He maligned Protagoras as a bellboy, and called Protagoras Democritus’ secretary and a teacher from the sticks. He called Heraclitus mudman, Democritus Lerocritus [nonsense lord]. Antidorus he called Sannidôros [servile-gifter]. He named the Cynics “Greece’s enemies”; he called the dialecticians Destructionists and, according to him, Pyrrho was unlearned and unteachable.”
πλεύμονά τε αὐτὸν ἐκάλει καὶ ἀγράμματον καὶ ἀπατεῶνα καὶ πόρνην: τούς τε περὶ Πλάτωνα Διονυσοκόλακας καὶ αὐτὸν Πλάτωνα χρυσοῦν, καὶ Ἀριστοτέλη ἄσωτον, <ὃν> καταφαγόντα τὴν πατρῴαν οὐσίαν στρατεύεσθαι καὶ φαρμακοπωλεῖν: φορμοφόρον τε Πρωταγόραν καὶ γραφέα Δημοκρίτου καὶ ἐν κώμαις γράμματα διδάσκειν: Ἡράκλειτόν τε κυκητὴν καὶ Δημόκριτον Ληρόκριτον καὶ Ἀντίδωρον Σαννίδωρον: τούς τε Κυνικοὺς ἐχθροὺς τῆς Ἑλλάδος: καὶ τοὺς διαλεκτικοὺς πολυφθόρους, Πύρρωνα δ᾽ ἀμαθῆ καὶ ἀπαίδευτον.