“A lie preserved in stained glass doesn't make it more true.”

Iraq? They just need to think it through (2007)
Context: What happened was, 2,400 years ago, the Greek Gang of Three, by whom I mean Aristotle, Plato and Socrates, started to think based on analysis, judgment and knowledge. At the same time, church people, who ran the schools and universities, wanted logic to prove the heretics wrong. As a result, design and perceptual thinking was never developed. People assumed philosophers were doing it and so they blocked anyone else from doing it. But philosophers were not. Philosophers may look out at the world from a stained-glass window, but after a while they stop looking at the world and start looking at the stained glass.

As quoted in The Leader's Digest : Timeless Principles for Team and Organization (2003) by Jim Clemmer, p. 84

[Price, Robert M., w:Robert M. Price, Christ a Fiction, https://infidels.org/library/modern/robert_price/fiction.html, 27 November 2016, 1997]

"Love Song"
Al Que Quiere! (1917)

St. LII
Adonais (1821)
Context: The One remains, the many change and pass;
Heaven's light forever shines, Earth's shadows fly;
Life, like a dome of many-coloured glass,
Stains the white radiance of Eternity,
Until Death tramples it to fragments.

Source: Deathworld (1960), p. 151
Context: Just because you know a thing is true in theory, doesn't make it true in fact. The barbaric religions of primitive worlds hold not a germ of scientific fact, though they claim to explain all. Yet if one of these savages has all the logical ground for his beliefs taken away — he doesn't stop believing. He then calls his mistaken beliefs 'faith' because he knows they are right. And he knows they are right because he has faith. This is an unbreakable circle of false logic that can't be touched. In reality, it is plain mental inertia. A case of thinking 'what always was' will also 'always be.' And not wanting to blast the thinking patterns out of the old rut.

Section 78
The Passionate State Of Mind, and Other Aphorisms (1955)

Volume 1, Ch. 11
Fiction, The Book of the Long Sun (1993–1996)

"Stufferation", from Adrian Mitchell's Greatest Hits (1991).
Other stanzas follow this pattern. Roger McGough wrote a version with the refrain "I like that stuff".