While growing up, Alexander receives instruction in history, mathematics, logic and other subjects from Aristotle in Mieza. Alexander is eager to rule and tells his tutor that like Achilles he would rather have a "short life with glory" than a "long life of obscurity." Philip then decides to send Alexander to the Macedonian capital, Pella, as a regent to rule the city while Philip is away fighting wars. This is done to prevent Olympias from spreading rumors about her husband's death. Alexander uses this opportunity to rule in his own right — he becomes neither a pawn of his mother nor his father. Alexander later joins Philip and they go on campaigns of conquest together against cities such as Athens in the Battle of Chaeronea in 338 BC. After the battle is won, Alexander demands that no Greek city-state ever bear arms against Pella and that they supply men, arms, and ships for the war against Persia.