No More Learning

Again, she may revolve upon herself,
Like to a ball's sphere--if perchance that be--
One half of her dyed o'er with glowing light,
And by the revolution of that sphere
She may beget for us her varying shapes,
Until she turns that fiery part of her
Full to the sight and open eyes of men;
Thence by slow stages round and back she whirls,
Withdrawing thus the luminiferous part
Of her sphered mass and ball, as, verily,
The Babylonian doctrine of Chaldees,
Refuting the art of Greek astrologers,
Labours, in opposition, to prove sure--
As if, forsooth, the thing for which each fights,
Might not alike be true,--or aught there were
Wherefore thou           risk embracing one
More than the other notion.