“Realism's 'truth' as embodied in painting and literature now solely consists of things capable of being seen by the eye or heard by the ear. Realism is concerned only with the external shell of nature. People content with the discoveries they have made ignore the fact that there are other things to be discovered, even broader avenues to be explored. They have found bacteria, but not what they consist of. [quote of 1892)”

Zamyatin here references a statement in Latin created by the poet Vyacheslav Ivanov: a realibus ad realiora ["from the real to the more real" or “from reality toward a higher reality"]
On Literature, Revolution, Entropy and Other Matters (1923)
Context: Science and art both project the world along certain coordinates. Differences in form are due only to differences in the coordinates. All realistic forms are projections along the fixed, plane coordinates of Euclid's world. These coordinates do not exist in nature. Nor does the finite, fixed world; this world is a convention, an abstraction, an unreality. And therefore Realism — be it "socialist" or "bourgeois" — is unreal. Far closer to reality is projection along speeding, curved surfaces — as in the new mathematics and the new art. Realism that is not primitive, not realia but realiora, consists in displacement, distortion, curvature, non-objectivity. Only the camera lens is objective.

Entry (1960)
Eric Hoffer and the Art of the Notebook (2005)
Context: Total innovation is a flight from comparison and also from imitation. Those who discover things for themselves and express them in their own way are not overly bothered by the fact that others have already discovered these things — have even discovered them over and over again — and have expressed what they found in all manner of ways.

Rules for the Direction of the Mind: X.379
As quoted in [Clarke, Desmond M., 2006, Descartes : a Biography, Cambridge Press, 67, ISBN 978-0-521-82301-2]

As quoted in Aftermath France, 1945-54: New Images of Man: An Exhibition (1982), p. 107
1959 - 1973, Various sources

The Notebooks of Leonardo Da Vinci (1938), XXIX Precepts of the Painter

Source: The Bed of Procrustes: Philosophical and Practical Aphorisms (2010), p. 78

Sir Cyril Norman Hinshelwood. "Presidential Address to Classical Association," 1959; Partly quotes in: Chemists through the years, part 1, The Royal Society of Chemistry, 1994.

Source: A Streetcar Named Desire