Marcus Aurelius
Meditations 12.21
Consider that before long thou wilt be nobody and nowhere, nor will any of the things exist which thou now seest, nor any of those who are now living. For all things are formed by nature to change and be turned and to perish, in order that other things in continuous succession may exist.
Marcus Aurelius, Meditations 12.21, translated by George Long
Bethink thee that thou wilt very soon be no one and nowhere, and so with all that thou now seest and all who are now living. For by Nature's law all things must change, be transformed, and perish, that other things may in their turn come into being.
Marcus Aurelius, Meditations 12.21, translated by C. R. Haines