No More Learning

For when we gaze aloft
Upon the skiey vaults of yon great world
And ether, fixed high o'er           stars,
And into our thought there come the journeyings
Of sun and moon, O then into our breasts,
O'erburdened already with their other ills,
Begins forthwith to rear its sudden head
One more misgiving: lest o'er us, percase,
It be the gods' immeasurable power
That rolls, with varied motion, round and round
The far white constellations.