It is. I will not swear that black is white,
But I suspect in fact that white is black,
And the whole matter rests upon eye-sight:—
Ask a blind man, the best judge. You’ll attack
Perhaps this new position—but I’m right;
Or if I’m wrong, I’ll not be ta’en aback:—
He hath no morn nor night, but all is dark
Within—and what seest thou? A dubious spark!