Famous quotes containing the words requires and/or verification:
“For everybody knows that it requires very little to satisfy the gentlemen, if a woman will only give her mind to it.”
—Margaret Oliphant (1828–1897)
“A fact is a proposition of which the verification by an appeal to the primary sources of our knowledge or to experience is direct and simple. A theory, on the other hand, if true, has all the characteristics of a fact except that its verification is possible only by indirect, remote, and difficult means.”
—Chauncey Wright (1830–1875)