The horse has a job. The vine has a job. What's yours?

The source

"The horse has a job. The vine has a job. What's yours?" Marcus Aurelius said it in Meditations 8.19. Translated from the original Greek by Spartan Surfers.

"Ἕκαστον πρός τι γέγονεν, ἵππος, ἄμπελος. ... σὺ οὖν πρὸς τί;"

Original Greek, Meditations 8.19. Greek: Leopold 1908 (Teubner) via Perseus.

Who said it

Marcus Aurelius (121–180 AD). Roman emperor who wrote private notes to himself on a military campaign. We know them as the Meditations.

Questions

Who said "The horse has a job. The vine has a job. What's yours?"?

Marcus Aurelius (121–180 AD). Source: Meditations 8.19.

What is the original Greek?

Ἕκαστον πρός τι γέγονεν, ἵππος, ἄμπελος. ... σὺ οὖν πρὸς τί;. Translated from the original Greek by Spartan Surfers.