Marcus Aurelius performs a subtle sleight of hand here—he doesn't argue *against* determinism, which would be the expected move, but rather accepts it completely and then pivots to what actually matters. The real wisdom lies in that second clause: once you stop wrestling with whether your life was predetermined, you're finally free to ask the only question worth asking. A person facing a terminal diagnosis, for instance, often reports that accepting the unchangeable—their fate—paradoxically brings clarity about how to spend the remaining time with less regret and more presence. That's the Stoic gift: surrender the battle you cannot win, and discover you were wasting energy on the wrong war entirely.