Epictetus
Enchiridion 21
Keep before your eyes day by day death and exile, and everything that seems terrible, but most of all death; and then you will never have any abject thought, nor will you yearn for anything beyond measure.
Epictetus, Enchiridion 21, translated by W. A. Oldfather
Let death and exile and every other thing which appears dreadful be daily before your eyes; but most of all death: and you will never think of any thing mean nor will you desire any thing extravagantly.
Epictetus, Enchiridion 21, translated by George Long
Keep before your eyes from day to day death and exile and all things that seem terrible, but death most of all, and then you will never set your thoughts on what is low and will never desire anything beyond measure.
Epictetus, Enchiridion 21, translated by P. E. Matheson