Apollodorus in his
Chronology tells us that our philosopher was a pupil of Nausiphanes and Praxiphanes
If this Praxiphanes was the pupil of Theophrastus, considerations of age would make it highly improbable that he could have taught Epicurus; cf. Usener, Fr. 123.; but in his letter to Eurylochus, Epicurus himself denies it and says that he was self-taught. Both Epicurus and Hermarchus deny the very existence of Leucippus the philosopher, though by some and by Apollodorus the Epicurean he is said to have been the teacher of Democritus. Demetrius the Magnesian affirms that Epicurus also attended the lectures of Xenocrates.
The terms he used for things were the ordinary terms, and Aristophanes the grammarian credits him with a very characteristic style. He was so lucid a writer that in the work
On Rhetoric he makes clearness the sole requisite.