Philip of Macedon, Alexander the Great's father, as he conquers the weakened city-states after the Peloponnesian War, he also conquers Aristotle's hometown of Stagira and he enslaves the population. And so when he goes to Aristotle to tutor his young son, who ends up being called Alexander the Great eventually, Aristotle says, okay, my fee will be free the people of my town. His town is freed. He tutors a young Alexander when Alexander's in his early teens. And he also gets support for a center of learning. He creates a Lyceum, which is his version of Plato's Academy. And just like you saw with Socrates and you see with Plato, Aristotle continued this tradition of a focus on learning and a humble acceptance of all that there might be in the world, this rationality that we now see in modern science that you didn't see from a lot of the ancients who were focused on the metaphysics and the gods.