Meaning of “All art is at once surface and symbol.”

Essays in the Art of Writing, “On Some Technical Elements of Style in Literature,” represented by the 1905 Chatto & Windus edition in Project Gutenberg #492. The collection is posthumous; the excerpt concerns literary aesthetics.

A Discourse Concerning the Original and Progress of Satire, represented in Project Gutenberg #2615. 'Satire is of the nature of moral philosophy, as being instructive' occurs inside Dryden's comparison of Persius, Juvenal and Horace, immediately before his account of Persius's Stoic moral teaching. The source does not expose a formal subsection corresponding to the queue parser's incidental 'Discourse C' clue, so this record is routed directly to the reviewed passage without inventing a structural heading. It remains Restoration literary criticism and moral theory rather than a timeless definition binding every modern satire.

The Marriage of Heaven and Hell, “Proverbs of Hell,” represented by Project Gutenberg #45315 at printed page 16. Gutenberg regularizes the line to “imagined”; Blake’s engraved text is often transcribed with historical spelling and punctuation. The proverb is part of Blake’s deliberately paradoxical infernal-wisdom sequence, not a literal claim that every imagined thing will eventually be proved.

The Renaissance, “The School of Giorgione”; Project Gutenberg #2398. The surrounding paragraph explains that other arts strive to reduce the separation between matter and form.

The Joyful Wisdom, aphorism 290, “One Thing is Needful”; Thomas Common translation in the 1910 Oscar Levy edition.

“Ode on a Grecian Urn,” closing lines.