Meditations, Book 12, Section 17

Marcus Aurelius — The Emperor

This period of life depends on nature's timing. Sometimes it's our individual nature, like when someone dies of old age. But it's always nature in general that decides. The parts keep changing one after another, but the whole world stays fresh and new. What's best and most timely is always what's good for the whole. So death itself can't hurt anyone in particular. It's not shameful because it doesn't depend on our will, and it doesn't go against the common good. In general, death is both useful and timely for the whole world. In that way, it must be good.

Marcus Aurelius — The Emperor Original

Now this time or certain period, depends of the determination of nature: sometimes of particular nature, as when a man dieth old; but of nature in general, however; the parts whereof thus changing one after another, the whole world still continues fresh and new. Now that is ever best and most seasonable, which is for the good of the whole. Thus it appears that death of itself can neither be hurtful to any in particular, because it is not a shameful thing (for neither is it a thing that depends of our own will, nor of itself contrary to the common good) and generally, as it is both expedient and seasonable to the whole, that in that respect it must needs be good.