"Ética a Nicómaco" is a philosophical work by Aristóteles, written in the 4th century BCE. It explores the nature of ethics and the path to achieving a good life, emphasizing the importance of virtue and moral character. The text is named after Nicomachus, Aristotle's son, and serves as a guide to understanding how to live well through the practice of virtues. In this work, Aristotle introduces the concept of the "Golden Mean," which suggests that moral virtue lies between extremes of excess and deficiency. He discusses various virtues, such as courage and temperance, and their role in achieving eudaimonia, or human flourishing, highlighting the significance of rationality in ethical decision-making.