Who served as an ancient Greek inspiration that contradicted Aristotle?

Epicurus served as an ancient Greek inspiration that contradicted Aristotle, particularly in his views on ethics and the nature of happiness. While Aristotle emphasized virtue and the cultivation of character as the path to a fulfilling life, Epicurus argued that pleasure, specifically the absence of pain and fear, is the highest good. He promoted a more individualistic approach to happiness, focusing on simple pleasures and the pursuit of tranquility, which diverged from Aristotle's more social and moral framework.