To make head's gain the portion of a world
Where else the uninstructed ones too sure
Would take all outside beauty—film that's furled
About a star—for the star's self, endure
No guidance to the central glory,—nay,
(Sadder) might apprehend the film was fog,
Or (worst) wish all but vapor well away,
And sky's pure product thickened from earth's bog—
Since so, nor seldom, have your worthiest failed
To trust their own soul's insight—why? except