Misquotations
Many quotations are routinely incorrect or attributed to the wrong authors, and quotations from obscure or unknown writers are often attributed to far more famous writers. Examples of this are Winston Churchill, to whom many political quotations of uncertain origin are attributed, and Oscar Wilde, to whom anonymous humorous quotes are sometimes attributed.
Deliberate misquotation is also common, though this often goes unnoticed, usually because the misquotation is better known or because the misquotation better fits a situation. For example, the Star Trek catchphrase "Beam me up, Scotty" did not appear in that form in the original series—likewise, the famous Dirty Harry quotation "Are you feeling lucky, punk?" is actually a rewording of the original dialogue: "You've got to ask yourself one question: 'Do I feel lucky?' Well, do ya punk?"
Read more about this topic: Quotation