I remember thine eyes well enough. Dost thou squinny at me? No, do thy worst, blind Cupid, I’ll not love. Read thou this challenge. Mark but the penning of it.

– William Shakespeare

King Lear, Act 4, Scene 6. Lear appears physically as well as morally blind when he fails to see that Gloucester has no eyes in his sockets and accuses him of squinting at him. Cupid the god of love is blind, he says, vowing never to love again.