How Did Ancient Philosophers Define Happiness?

Imagine happiness as a treasure chest. For some ancient thinkers, like Socrates, happiness was found by asking big questions and living with truth, kind of like finding gold in the middle of a thoughtful conversation. Others, like Epicurus, thought it came from simple joys, eating good food and having friends around. Aristotle believed that happiness was about being the best version of yourself, like when you feel proud after doing something really well.