He who flies from his master is a runaway; but the law is master, and he who breaks the law is a runaway. And he also who is grieved or angry or afraid, is dissatisfied because something has been or is or shall be of the things which are appointed by Him who rules all things, and He is Law, and assigns to every man what is fit. He then who fears or is grieved or is angry is a runaway.

X, 25 - Meditations (c. 161–180 CE) - Book X