After assisting his father in his school, he tried his hand at acting with indifferent success, served with distinction in the army, and held several clerkships, amongst them the office of clerk to the Boule.

[1] In spring of 347 BC, Aeschines addressed the assembly of Ten Thousand in Megalopolis, Arcadia urging them to unite and defend their independence against Philip.

[1] Aeschines counterattacked by claiming that Timarchus had forfeited the right to speak before the people as a consequence of youthful debauches which had left him with the reputation of being a whore and prostituting himself to many men in the port city of Piraeus.

This comment was later interpreted by Pseudo-Plutarch in his Lives of the Ten Orators as meaning that Timarchos hanged himself upon leaving the assembly, a suggestion contested by some modern historians.

In 336 BC, when Ctesiphon proposed that his friend Demosthenes should be rewarded with a golden crown for his distinguished services to the state, Aeschines accused him of having violated the law in bringing forward the motion.