From Alice's Adventures in Wonderland, and Through the Looking Glass, by Lewis Carroll
And I haven't sent the two Messengers, either. The're both gone to the town. Just look along the road, and tell me if you can see either of them." "I see nobody on the road," said Alice. "I only with _I_ had such eyes," the King remarked in a fretful tone. "To be able to see Nobody! And at that distance too! Why, it's as much as _I_ can do to see real people, by this light!" -- Through the Looking-Glass Chapter vii