Captain Kirk never said "Beam me up, Scotty!" Ilsa Laszlow never said, "Play it again, Sam," and Sherlock Holmes never said, "Elementary, my dear Watson." But these misquotes remain firmly lodged in the public consciousness, even though they appear nowhere in the original works.

The same is true for things "said" – that is, widely attributed to, but not actually said – by political figures. Sometimes a misquote is cooked up by opponents or parodists as a way of discrediting or mocking the figure. Sometimes a line is attributed to a widely admired person as a way of making it sound more authoritative, like when someone co-signs a loan. And sometimes it's just a mistake.

Here are 10 of the most widely believed – but completely bogus – things ever "said" by political figures.