Trust Nobody, Not Even Yourself - Not Even Nobody

'Three times I poured and gave it to him [the cyclops], and three times, foolishly, he drained it. When the wine had fuddled his wits I tried him with subtle words: “Cyclops, you asked my name, and I will tell it: give me afterwards a guest gift as you promised. My name is Nobody. Nobody, my father, mother, and friends call me.

"[He stabs the cyclops in the eye]

"They heard his cry, and crowding in from every side they stood by the cave mouth and asked what was wrong: “Polyphemus, what terrible pain is this that makes you call through deathless night, and wake us? Is a mortal stealing your flocks, or trying to kill you by violence or treachery?”

"Out of the cave came mighty Polyphemus’ voice: “Nobody, my friends, is trying to kill me by violence or treachery.”

"To this they replied with winged words: “If you are alone, and nobody does you violence, it’s an inescapable sickness that comes from Zeus: pray to the Lord Poseidon, our father.”"

- The Odyssey, Book IX

I will admit that I didn't expect that piece of literature to be quoted on this site, let alone in a perfectly legitimate context.