Terry Pratchett quote: “As large as worlds. As old as Time. As patient as a brick.”

“With regard to burnt brick… If not made of good clay or if not baked sufficiently, it shows itself defective… when exposed to frosts and rime. Brick that will not stand exposure on roofs can never be strong enough to carry its load in a wall. Hence the strongest burnt brick walls are those which are constructed out of old roofing tiles.”

Vitruvius book De architectura

Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book II, Chapter VIII, Sec. 19

“Bricks will be most serviceable if made two years before using; for they cannot dry thoroughly in less time. When fresh undried bricks are used in a wall, the stucco covering”

Vitruvius book De architectura

Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book II, Chapter III, Sec. 2
Context: Bricks will be most serviceable if made two years before using; for they cannot dry thoroughly in less time. When fresh undried bricks are used in a wall, the stucco covering stiffens and hardens into a permanent mass, but the bricks settle and... the motion caused by their shrinking prevents them from adhering to it, and they are separated from their union with it.... at Utica in constructing walls they use brick only if it is dry and made five years previously, and approved as such by the authority of a magistrate.

“All states in the world, large or small, are cities of Heaven, and all people, young or old, honourable or humble, are its subjects”

Mozi (-470–-391 BC) Chinese political philosopher and religious reformer of the Warring States period

Book 1; On the necessity of standards
Mozi
Context: All states in the world, large or small, are cities of Heaven, and all people, young or old, honourable or humble, are its subjects; for they all graze oxen and sheep, feed dogs and pigs, and prepare clean wine and cakes to sacrifice to Heaven. Does this not mean that Heaven claims all and accepts offerings from all? Since Heaven does claim all and accepts offerings from all, what then can make us say that it does not desire men to love and benefit one another? Hence those who love and benefit others Heaven will bless. Those who hate and harm others Heaven will curse, for it is said that he who murders the innocent will be visited by misfortune. How else can we explain the fact that men, murdering each other, will be cursed by Heaven? Thus we are certain that Heaven desires to have men love and benefit one another and abominates to have them hate and harm one another

“I like talking to a brick wall- it's the only thing in the world that never contradicts me!”

Oscar Wilde Lady Windermere's Fan

Source: Lady Windermere's Fan

“The old world is dying, and the new world struggles to be born: now is the time of monsters.”

Antonio Gramsci (1891–1937) Italian writer, politician, theorist, sociologist and linguist

Loose translation, commonly attributed to Gramsci by Slavoj Žižek, presumably formulation by Žižek (see below).
Presumably a translation from a loose French translation by Gustave Massiah; strict English with cognate terms and glosses:
Le vieux monde se meurt, le nouveau monde tarde à apparaître et dans ce clair-obscur surgissent les monstres
The old world is dying, the new world tardy (slow) to appear and in this chiaroscuro (light-dark) surge (emerge) monsters.
“ Mongo Beti, une conscience noire, africaine, universelle http://www.liberationafrique.org/imprimersans.php3?id_article=16&nom_site=Lib%C3%A9ration”, Gustave Massiah, CEDETIM, août 2002 ( archive https://web.archive.org/web/20160304061734/http://www.liberationafrique.org/imprimersans.php3?id_article=16&nom_site=Lib%C3%A9ration, 2016-03-04)
“Mongo Beti, a Black, African, Universal Conscience”, Gustave Massiah, CEDETIM, August 2002
Collected in: Remember Mongo Beti, Ambroise Kom, 2003, p. 149 https://books.google.com/books?id=6YgdAQAAIAAJ&q=%22Le+vieux+monde+se+meurt,+le+nouveau+monde+tarde+%C3%A0+appara%C3%AEtre+et+dans+ce+clair-obscur+surgissent+les+monstres%22.
Original, with literal English translation (see above):
La crisi consiste appunto nel fatto che il vecchio muore e il nuovo non può nascere: in questo interregno si verificano i fenomeni morbosi piú svariati.
The crisis consists precisely in the fact that the old is dying and the new cannot be born; in this interregnum a great variety of morbid symptoms appear.
Similar sentiments are widespread in revolutionary rhetoric; see: No, Žižek did not attribute a Goebbels quote to Gramsci http://thecharnelhouse.org/2015/07/03/no-zizek-did-not-attribute-a-goebbels-quote-to-gramsci/, Ross Wolfe, 2015-07-03
Misattributed
Source: Selections from the Prison Notebooks

“The most competent physician of our world advises the patient to listen to an ignorant doctor who the patient thinks is very competent rather than to a competent doctor who the patient thinks is ignorant.”

Cyrano de Bergerac (1619–1655) French novelist, dramatist, scientist and duelist

The Other World (1657)
Context: The most competent physician of our world advises the patient to listen to an ignorant doctor who the patient thinks is very competent rather than to a competent doctor who the patient thinks is ignorant. He reason is that our imagination works for our good health, and as long as it is supplemented by remedies, it is capable of healing us. But the most powerful remedies are too weak when the imagination does not apply them.