Rumsfeld's wisdom was first invoked by University of California at Los Angeles paleobiologist William Schopf, who, in a commentary on a lecture on the origins of life, asked: "What do we know? What are the unsolved problems? What have we failed to consider?"ĭisputation is at the heart of a robust scienceĬreationists and outsiders often mistake the last two categories for signs that evolution is in trouble or that contentious debate between what we know and do not know means that the theory is false. The June conference, hosted by San Francisco University of Quito, was held on the Gal¿pagos island of San Crist¿bal, where Charles Darwin began his explorations. Rumsfeld's logic may be tongue-twisting, but his epistemology was sound enough that he was quoted twice at the World Summit on Evolution. But there are also unknown unknowns, the ones we don't know we don't know." That is to say, we know there are some things we do not know. At a February 12, 2002, news briefing, Secretary of Defense Donald Rumsfeld explained the limitations of intelligence reports: "There are known knowns.
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