Myself may deal with—make it thaw my blood
And prompt my steps, were truer to the mark
Of mind's requirement than a half-surmise
That somehow secretly is operant,
A power all matter feels, mind only tries
To comprehend! Once more—no idle vaunt
'Man comprehends the Sun's self!' Mysteries
At source why probe into? Enough: display,
Make demonstrable, how, by night as day,
Earth's centre and sky's outspan, all 's informed