A lie has no power whatsoever by its mere utterance; its power emerges when someone else agrees to believe the lie.

Source: "How to Spot a Liar." TEDGlobal 2011. Jul. 2011. Conference Presentation. Additional Information: This quote by Pamela Meyer, author of Liespotting, means that it actually takes two people, not one, to lie: it takes one person to tell the lie and another person to believe it. In the TED Talk this quote is from, Meyer explains that we are often willing participants in deception and thus share the blame with the person who is lying to us. Meyer also describes the telltale signs of deception to show her audience how to detect a liar. Watch the full TED Talk here: Pamela Meyer - How to Spot a Liar