“To lend freshness to things known, to spread knowledge of things new; an excellent program for a critic.”

Cited in: Opus majus: A translation by Robert Belle Burke. Vol 1 (1962). p. 128
Opus Majus, c. 1267
Context: For the things of this world cannot be made known without a knowledge of mathematics. For this is an assured fact in regard to celestial things, since two important sciences of mathematics treat of them, namely theoretical astrology and practical astrology. The first … gives us definite information as to the number of the heavens and of the stars, whose size can be comprehended by means of instruments, and the shapes of all and their magnitudes and distances from the earth, and the thicknesses and number, and greatness and smallness, … It likewise treats of the size and shape of the habitable earth … All this information is secured by means of instruments suitable for these purposes, and by tables and by canons.. For everything works through innate forces shown by lines, angles and figures.

Doug McIlroy (2003). The Art of Unix Programming: The Elements of Operating-System Style http://www.catb.org/esr/writings/taoup/html/ch03s01.html

No. 291 (2 February 1712).
The Spectator (1711–1714)

Live at the Purple Onion (2007)

"On Medicine, (c. 1020) http://www.fordham.edu/halsall/source/1020Avicenna-Medicine.html
Context: The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes. Therefore in medicine we ought to know the causes of sickness and health. And because health and sickness and their causes are sometimes manifest, and sometimes hidden and not to be comprehended except by the study of symptoms, we must also study the symptoms of health and disease. Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials. Of these causes there are four kinds: material, efficient, formal, and final.

Quoted in: 'Karel Appel, Dutch Expressionist Painter, Dies at 85', by Margalit Fox, in 'Art & Design', New York Times May 9, 2006
Quote of an oral history in 'Contemporary Artists' - Karel Appel describes the wild artistic urgency that gave rise to the Cobra artist-group

The Devil and Daniel Webster (1937)
Context: He started off in a low voice, though you could hear every word. They say he could call on the harps of the blessed when he chose. And this was just as simple and easy as a man could talk. But he didn't start out by condemning or reviling. He was talking about the things that make a country a country, and a man a man.
And he began with the simple things that everybody's known and felt — the freshness of a fine morning when you're young, and the taste of food when you're hungry, and the new day that's every day when you're a child. He took them up and he turned them in his hands. They were good things for any man. But without freedom, they sickened. And when he talked of those enslaved, and the sorrows of slavery, his voice got like a big bell. He talked of the early days of America and the men who had made those days. It wasn't a spread-eagle speech, but he made you see it. He admitted all the wrong that had ever been done. But he showed how, out of the wrong and the right, the suffering and the starvations, something new had come. And everybody had played a part in it, even the traitors.

statement for catalogue of 1914 exhibition at 291, reprinted in On art, p. 62; as quoted in Marsden Hartley, by Gail R. Scott, Abbeville Publishers, Cross River Press, 1988, New York p. 49
1908 - 1920

"God's Grandeur," line 10
Wessex Poems and Other Verses (1918)