The "Enchiridion" is a concise manual of practical ethical advice written by the ancient Greek philosopher Epictetus. It serves as a guide to Stoic philosophy, emphasizing the importance of distinguishing between what is within our control and what is not. The text encourages readers to focus on their own actions and attitudes rather than external circumstances. Originally compiled by Arrian, a student of Epictetus, the "Enchiridion" has influenced many thinkers throughout history. Its teachings promote resilience, self-discipline, and the pursuit of virtue, making it a foundational work in the study of Stoicism and personal development.