“No science is more worthy of cultivation and encouragement than that which, calculating time by the aid of Astronomy, adjusts the results of observations thus obtained to the ordinary use and instruction of man.”

Universities, Actual and Ideal (1874)
1870s
Context: In an ideal University, as I conceive it, a man should be able to obtain instruction in all forms of knowledge, and discipline in the use of all the methods by which knowledge is obtained. In such a University, the force of living example should fire the student with a noble ambition to emulate the learning of learned men, and to follow in the footsteps of the explorers of new fields of knowledge. And the very air he breathes should be charged with that enthusiasm for truth, that fanaticism of veracity, which is a greater possession than much learning; a nobler gift than the power of increasing knowledge; by so much greater and nobler than these, as the moral nature of man is greater than the intellectual; for veracity is the heart of morality.

Book II, Chapter V; translation by Andrew P. Peabody
Tusculanae Disputationes – Tusculan Disputations (45 BC)
Context: A: For what stronger proof can there be of its [philosophy's] uselessness than that some accomplished philosophers lead disgraceful lives?
M: It is no proof at all; for as all cultivated fields are not harvest-yielding [... ] so all cultivated minds do not bear fruit. To continue the figure – as a field, though fertile, cannot yield a harvest without cultivation, no more can the mind without learning; thus each is feeble without the other. But philosophy is the cultivation of the soul. It draws out vices by the root, prepares the mind to receive seed, and commits to it, and, so to speak, sows in it what, when grown, may bear the most abundant fruit.

Statement of 1864, quoted in Pamphlets on the Deaf, Dumb & Blind http://books.google.com/books?id=FLcMAQAAIAAJ&q=%22There+is+no+dress+which+embellishes+the+body+more+than+science+does+the+mind%22&dq=%22There+is+no+dress+which+embellishes+the+body+more+than+science+does+the+mind%22&hl=en&sa=X&ei=UlFgVOWoJY-uyATH1YDACQ&ved=0CB8Q6AEwAA

Interview The Hindu, 2014
Miscellaneous

The trial of Charles B. Reynolds for blasphemy (1887)
Context: We have now a science called astronomy. That science has done more to enlarge the horizon of human thought than all things else. We now live in an infinite universe. We know that the sun is a million times larger than our earth, and we know that there are other great luminaries millions of times larger than our sun. We know that there are planets so far away that light, traveling at the rate of one hundred and eighty- five thousand miles a second, requires fifteen thousand years to reach this grain of sand, this tear, we call the earth -- and we now know that all the fields of space are sown thick with constellations. If that statute had been enforced, that science would not now be the property of the human mind. That science is contrary to the Bible, and for asserting the truth you become a criminal. For what sum of money, for what amount of wealth, would the world have the science of astronomy expunged from the brain of man? We learned the story of the stars in spite of that statute.

Source: How Successful People Think: Change Your Thinking, Change Your Life

"On the Harmony of Theory and Practice in Mechanics" (Jan. 3, 1856)
Context: The objects of instruction in purely scientific mechanics and physics are, first, to produce in the student that improvement of the understanding which results from the cultivation of natural knowledge, and that elevation of mind which flows from the contemplation of the order of the universe; and secondly, if possible, to qualify him to become a scientific discoverer.<!--p. 176

Instructions populaires sur le calcul des probability (1825) English translation by R. Beamish (1839)

Source: Practical Pictorial Photography, 1898, Pin-hole as a substitute for the lens, p. 61