by Tom Swift

You have two essential choices. Either you can set yourself to developing your reason, cleaving to truth, or you can hanker after externals. The choice is yours and yours alone. You can either put your skills toward internal work or lose yourself to externals, which is to say, be a person of wisdom, or follow the common ways of the mediocre.

-Epictetus, Manual for Living (1994, Sharon Lebell translation)