Primary Level

Famous quotes containing the words primary and/or level:

“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)

“We never exchange more than three words with a Friend in our lives on that level to which our thoughts and feelings almost habitually rise.”
—Henry David Thoreau (1817–1862)