"The Enchiridion" is a short handbook of Stoic philosophy written by the ancient Greek philosopher Epictetus. The title "Enchiridion" means "handbook" in Greek, and the work is also sometimes referred to as "The Manual" or "The Handbook of Epictetus."The book is a compilation of Epictetus' teachings, and it is structured as a series of maxims and aphorisms that cover a wide range of topics, including ethics, morality, personal conduct, and the nature of the world. The central message of the book is that individuals can attain inner peace and happiness by learning to control their own thoughts and emotions, rather than trying to control external circumstances.