Four questions with a single word. Πόστον is "how-manieth, what fraction" — a rare and exact word, asking about position in a series rather than size in general. It is repeated four times, and the measure changes each time: time, substance, soul, earth. Cf. 12.7, where the same magnitudes are listed without a question.

ἀχανής — the same word as in 12.7. τοῦ ἀπείρου καὶ ἀχανοῦς αἰῶνος — "of the boundless and gaping age"; 12.7 had the noun ἀχάνεια, here it is the adjective. Between them stands 9.32 with the same root. The image is one: not infinity as an abstraction but the open jaw of time.

A word that lowers a man as far as he will go. ἐν πόστῳ βωλαρίῳ … ἕρπεις; — "on what little clod are you crawling?" Βωλάριον is a diminutive of βῶλος, "a lump, a clod": not "a patch of earth" but a crumb of it. And the verb ἕρπω is used of reptiles and worms. Rogovin keeps it ("we crawl"); Long softens it to "creepest."

And a conclusion that cancels all the preceding humiliation. μηδὲν μέγα φαντάζου ἢ τό — "imagine nothing to be great except this." And "this" is divided in two along the two natures: DOGMAto act as your DOGMAownDOGMA φύσις leads, to undergo as the DOGMAcommonDOGMA one brings. Action is referred to the individual nature, undergoing to the universal; and the greatness withdrawn from everything else is given over entire to that single distinction. The governing discipline is desire, the sustaining one assent.