Marcus Aurelius
Meditations 12.27
Constantly bring to thy recollection those who have complained greatly about anything, those who have been most conspicuous by the greatest fame or misfortunes or enmities or fortunes of any kind: then think where are they all now? Smoke and ash and a tale, or not even a tale. And let there be present to thy mind also everything of this sort, how Fabius Catellinus lived in the country, and Lucius Lupus in his gardens, and Stertinius at Briae, and Tiberius at Capreae, and Velius Rufus [or Rufus at Velia]; and in fine think of the eager pursuit of anything conjoined with pride; and how worthless everything is after which men violently strain; and how much more philosophical it is for a man in the opportunities presented to him to show himself just, temperate, obedient to the gods, and to do this with all simplicity: for the pride which is proud of its want of pride is the most intolerable of all.
Marcus Aurelius, Meditations 12.27, translated by George Long
Let thy mind dwell continually on those who have shewn unmeasured resentment at things, who have been conspicuous above others for honours or disasters or enmities or any sort of special lot. Then consider, Where is all that now? Smoke and dust and a legend or not a legend even. Take any instance of the kind—Fabius Catullinus in the country, Lusius Lupus in his gardens, Stertinius at Baiae, Tiberius in Capreae, and Velius Rufus—in fact a craze for any thing whatever arrogantly indulged. How worthless is everything so inordinately desired! How much more worthy of a philosopher is it for a man without any artifice to shew himself in the sphere assigned to him just, temperate, and a follower of the Gods. For the conceit that is conceited of its freedom from conceit is the most insufferable of all.
Marcus Aurelius, Meditations 12.27, translated by C. R. Haines