Meditations 5.13

I am composed of the formal and the material; and neither of them will perish into non-existence, as neither of them came into existence out of non-existence. Every part of me then will be reduced by change into some part of the universe, and that again will change into another part of the universe, and so on forever. And by consequence of such a change I too exist, and those who begot me, and so on forever in the other direction. For nothing hinders us from saying so, even if the universe is administered according to definite periods [of revolution].

Marcus Aurelius, Meditations 5.13, translated by George Long

I am made up of the Causal and the Material, and neither of these disappears into nothing, just as neither did it come into existence out of nothing. So shall my every part by change be told off to form some part of the Universe, and that again be changed into another part of it, and so on to infinity. It was by such process of change that I too came into being and my parents, and so backwards into a second infinity. And the statement is quite legitimate, even if the Universe be arranged according to completed cycles.

Marcus Aurelius, Meditations 5.13, translated by C. R. Haines