Marcus Aurelius
Meditations 10.27
Constantly consider how all things such as they now are, in time past also were; and consider that they will be the same again. And place before thy eyes entire dramas and stages of the same form, whatever thou hast learned from thy experience or from older history; for example, the whole court of Hadrianus, and the whole court of Antoninus, and the whole court of Philippus, Alexander, Croesus; for all those were such dramas as we see now, only with different actors.
Marcus Aurelius, Meditations 10.27, translated by George Long
Bear in mind continually how all such things as now exist existed also before our day and, be assured, will exist after us. Set before thine eyes whole dramas and their settings, one like another, all that thine own experience has shewn thee or thou hast learned from past history, for instance the entire court of Hadrianus, the entire court of Antoninus, the entire court of Philip, of Alexander, of Croesus. For all those scenes were such as we see now, only the performers being different.
Marcus Aurelius, Meditations 10.27, translated by C. R. Haines