“So rolling time changes the seasons of things. What was of value, becomes in turn of no worth.”
Book V, lines 1276–1277 (tr. Bailey)
De Rerum Natura (On the Nature of Things)
Original
Sic volvenda aetas commutat tempora rerum. Quod fuit in pretio, fit nullo denique honore.
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Lucretius 45
Roman poet and philosopher -94–-55 BCRelated quotes

Vague Thoughts On Art (1911)
Context: I cannot help thinking that historians, looking back from the far future, will record this age as the Third Renaissance. We who are lost in it, working or looking on, can neither tell what we are doing, nor where standing; but we cannot help observing, that, just as in the Greek Renaissance, worn-out Pagan orthodoxy was penetrated by new philosophy; just as in the Italian Renaissance, Pagan philosophy, reasserting itself, fertilised again an already too inbred Christian creed; so now Orthodoxy fertilised by Science is producing a fresh and fuller conception of life — a love of Perfection, not for hope of reward, not for fear of punishment, but for Perfection's sake. Slowly, under our feet, beneath our consciousness, is forming that new philosophy, and it is in times of new philosophies that Art, itself in essence always a discovery, must flourish. Those whose sacred suns and moons are ever in the past, tell us that our Art is going to the dogs; and it is, indeed, true that we are in confusion! The waters are broken, and every nerve and sinew of the artist is strained to discover his own safety. It is an age of stir and change, a season of new wine and old bottles. Yet, assuredly, in spite of breakages and waste, a wine worth the drinking is all the time being made.

"Turn! Turn! Turn!" (1954); a song which adapts a passage from the book of Ecclesiastes to music, with a few additional lyrics.

Interview with Renai LeMay http://rlemay.com.au/greg-egan-the-big-interview/
Other

Foreward (p. xv)
Earthsea Books, Tales from Earthsea (2001)

“Things changed, people changed, and the world went rolling along right outside the window.”
Source: Message in a Bottle