If you gaze long into an abyss, the abyss will gaze back into you.

We see things not as they are but as we are.

Then purg'd with euphrasy and rue The visual nerve, for he had much to see.

At whose sight all the stars / Hide their diminished heads.

For any man with half an eye, What stands before him may espy; But optics sharp it needs I ween, To see what is not to be seen.

The age, wherein he lived was dark; but he Could not want sight, who taught the world to see.