What did Philip learn from Epaminondas when he was young?

In the middle of the 4th century BC, Philip II came to power (359-336 BC), the royal power of Macedonia was greatly strengthened, and the national situation was developing day by day. Philip was a hostage in Thebes for three years when he was young, around Epaminondas, where he learned war tactics, fighting skills and politics. He was deeply influenced by Greek culture and understood the weaknesses and contradictions of Greek city-states. Philip was very talented. After he ascended the throne, he cut off the arms of tribal leaders, restricted the power of aristocratic meetings, and concentrated the power of the army in his own hands. He also carried out currency reform, using both gold coins and silver coins, and the two currencies were exchanged at a fixed price. At that time, Greece used silver coins, while Persia used gold coins, Macedonian gold coins and silver coins, which were convenient for trade and could compete with the two monetary forces. The currency reform promoted the development of Macedonian commerce and handicraft industry, and strengthened the country's economic strength.

The scene of the battle between the two armies