Who said, “A little knowledge is a dangerous thing”? July 6, 2020 by Pamela Landy The line is from English writer Alexander Pope’s poem An Essay on Criticism. It actually reads “A little learning is a dangerous thing.” Related Answers Who originated the term “New Criticism”? Who wrote, “To err is human, to forgive divine”? How old is The Tale of Genji? What is a rubaiyat? Who was Martinus Scriblerus? What does Virginia Woolf mean by “a room of one’s own”?