“The inevitable triumph of illusion over reality that was the single most obvious truth about the history of the human race.”

Penguin Books 2015 edition, page 46.
No Place to Hide (2014)

Source: This Is Water: Some Thoughts, Delivered on a Significant Occasion, about Living a Compassionate Life

The History of the World (1614), Preface

Source: October 1881. See The Nineteenth Century — A monthly review, Volume 10 https://books.google.com.br/books?id=QYEPAAAAMAAJ&pg=PA813, edited by James Knowles, London, 1881.

The Almost Perfect State (1921)
Context: The wise and subtle deities permit nothing worthy to be lost. It was with no thought of beauty that the builders labored; no conscious thought; they were masters or slaves in the bitter wars of commerce, and they never saw as a whole what they were making; no one of them did. But each one had had his dream. And the baffled dreams and the broken visions and the ruined hopes and the secret desires of each one labored with him as he labored; the things that were lost and beaten and trampled down went into the stone and steel and gave it soul: the aspiration denied and the hope abandoned and the vision defeated were the things that lived, and not the apparent purpose for which each one of all the millions sweat and toiled or cheated; the hidden things, the silent things, the winged things, so weak they are easily killed, the unacknowledged things, the rejected beauty, the strangled appreciation, the inchoate art, the submerged spirit — these groped and found each other and gathered themselves together and worked themselves into the tiles and mortar of the edifice and made a town that is a worthy fellow of the sunrise and the sea winds.
Humanity triumphs over its details.

"What is War?" (1924)

R. S. Thomas : Priest and Poet, BBC TV (2 April 1972)