“Fine art is something wonderful that's left long into the future… eternal beauty.”

Source: Into Thin Air

Source: I Know Why the Caged Bird Sings

Toutes les beautés contiennent, comme tous les phénomènes possibles, quelque chose d'éternel et quelque chose de transitoire — d'absolu et de particulier.
"De l'héroïsme de la vie moderne," Salon de 1846, XVIII (1846) http://fr.wikisource.org/wiki/Salon_de_1846_%28Curiosit%C3%A9s_esth%C3%A9tiques%29#XVIII._.E2.80.94_De_l.E2.80.99h.C3.A9ro.C3.AFsme_de_la_vie_moderne

XXIII. 103–104 (tr. R. Lattimore); Achilles after seeing Patroclus' ghost.
Iliad (c. 750 BC)

Original: Non lasciatevi incantare da una bella opera d'arte, ispiratevi e create qualcosa di migliore.
Source: prevale.net

Short story, 'Damaged Goods' - p.60
Short stories, The Turning (2004)

On making beautiful artwork in “Gronk by Marisela Norte” https://bombmagazine.org/articles/gronk/ in BOMB Magazine (2007 Jan 1)

"On Optimism and Pessimism, on the Twentieth Century, and on Many Other Things" (1901), as quoted in The Prophet Armed : Trotsky, 1879-1921 (2003) by Isaac Deutscher , p. 45