Famous quotes containing the words primary and/or brain:
“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 (18301875)
“I dont know but a book in a mans brain is better off than a book bound in calfat any rate it is safer from criticism. And taking a book off the brain, is akin to the ticklish & dangerous business of taking an old painting off a panelyou have to scrape off the whole brain in order to get at it with due safety& even then, the painting may not be worth the trouble.”
—Herman Melville (18191891)