
Source: The Mike Wallace Interview (1958)
Source: Homily of Most. Rev. Honesto Ongtioco, DD at the Mass of the Holy Spirit https://lst.edu/articles/homily-of-most-rev-honesto-ongtioco-dd-at-the-mass-of-the-holy-spirit-held-on-august-26-2015/ (August 26, 2015)
Source: The Mike Wallace Interview (1958)
Vol. 2, Ch. 22, § 257 "On Thinking for Yourself" as translated in Essays and Aphorisms(1970) as translated by R. J. Hollingdale
Variant translation: Just as the largest library, badly arranged, is not so useful as a very moderate one that is well arranged, so the greatest amount of knowledge, if not elaborated by our own thoughts, is worth much less than a far smaller volume that has been abundantly and repeatedly thought over.
Parerga and Paralipomena (1851), Counsels and Maxims
Lecture 6
Lectures on Education (1855)
Context: The most ignorant are the most conceited. Unless a man knows that there is something more to be known, his inference is, of course, that he knows every thing. Such a man always usurps the throne of universal knowledge, and assumes the right of deciding all possible questions. We all know that a conceited dunce will decide questions extemporaneous which would puzzle a college of philosophers, or a bench of judges. Ignorant and shallow-minded men do not see far enough to see the difficulty. But let a man know that there are things to be known, of which he is ignorant, and it is so much carved out of his domain of universal knowledge. And for all purposes of individual character, as well as of social usefulness, it is quite as important for a man to know the extent of his own ignorance as it is to know any thing else. To know how much there is that we do not know, is one of the most valuable parts of our attainments; for such knowledge becomes both a lesson of humility and a stimulus to exertion.
Source: The Analects, Chapter II
Lecture on "Electrical Units of Measurement" (3 May 1883), published in Lectures Vol. I, p. 73 https://archive.org/stream/popularlecturesa01kelvuoft#page/73/mode/1up|Popular
1950s, The Impact of Science on Society (1952)
"4th Foundational Falsehood of Creationism" https://www.youtube.com/watch?v=80nhqGfN6t8, Youtube (December 25, 2007)
Youtube, Foundational Falsehoods of Creationism