The question mark (?; also known as an interrogation point, interrogation mark, question point, query or eroteme), is a punctuation mark that replaces the full stop (period) at the end of an interrogative sentence in English and many other languages. The question mark is not used for indirect questions. The question mark character is also often used in place of missing or unknown data.
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Famous quotes containing the words question and/or mark:
“The only question which any wise man can ask himself, and which any honest man will ask himself, is whether a doctrine is true or false.”
—Thomas Henry Huxley (1825–95)
“Rereading this novel today, replaying the moves of its plot, I feel rather like Anderssen fondly recalling his sacrifice of both Rooks to the unfortunate and noble Kieseritsky—who is doomed to accept it over and over again through an infinity of textbooks, with a question mark for monument.”
—Vladimir Nabokov (1899–1977)