another speech, Aeschines brings up the pederastic relation of his opponent with a boy called Cnosion. The slander that Demosthenes' wife also slept with the boy suggests that the relationship was contemporary with his marriage. Aeschines claims that Demosthenes made money out of young rich men, such as Aristarchus, the son of Moschus, whom he allegedly deceived with the pretence that he could make him a great orator. Apparently, while still under Demosthenes' tutelage, Aristarchus killed and mutilated a certain Nicodemus of Aphidna. Aeschines accused Demosthenes of complicity in the murder, pointing out that Nicodemus had once pressed a lawsuit accusing Demosthenes of desertion. He also accused Demosthenes of having been such a bad to Aristarchus so as not even to deserve the name. His crime, according to Aeschines, was to have betrayed his by pillaging his estate, allegedly pretending to be in love with the youth so as to get his hands on the boy's inheritance. Nevertheless, the story of Demosthenes' relations with Aristarchus is still regarded as more than doubtful, and no other pupil of Demosthenes is known by name. Education Between his coming of age in 366 BC and the trials that took place in 364 BC, Demosthenes and his guardians negotiated acrimoniously but were unable to reach an agreement, for neither side was willing to make concessions. At the same time, Demosthenes prepared himself for the trials and improved his oratory skill. According to a story repeated by Plutarch, when Demosthenes was an adolescent, his curiosity was noticed by the orator Callistratus, who was then at the height of his reputation, having just won a case of considerable importance. According to Friedrich Nietzsche, a German philologist and philosopher, and Constantine Paparrigopoulos, a major modern Greek historian, Demosthenes was a student of Isocrates; according to Cicero, Quintillian and the Roman biographer Hermippus, he was a student of Plato. Lucian, a Roman-Syrian rhetorician and satirist, lists the philosophers Aristotle, Theophrastus and Xenocrates among his teachers. These claims are nowadays disputed. According to Plutarch, Demosthenes employed Isaeus as his master in rhetoric, even though Isocrates was then teaching this subject, either because he could not pay Isocrates the prescribed fee or because Demosthenes believed Isaeus' style better suited a vigorous and astute orator such as himself. Curtius, a German archaeologist and historian, likened the relation between Isaeus and Demosthenes to "an intellectual armed alliance". It has also been said