Enchiridion
Epictetus / Long, George![Enchiridion](https://support.digitalhusky.com/media/annotations/sorted/169/1691480/CHSBZCOP031691480.jpg)
A first-century Stoic, Epictetus argued that we will always be happy if we learn to desire that things should be exactly as they are. His "Enchiridion "distills his teachings to illuminate a way to a tranquil life.