“Even though it’s applied science we’re dealin’ with, it still is – science!”

(15 June 2007)
Unfit for Mass Consumption (blog entries), 2007
Context: Art is not science. Even when art is about science, it is still art. There cannot be consensus, in the sense that science strives for meaningful consensus. And unlike science, art is not progressive. Personally, I have my doubts that science can be said to be genuinely progressive, but I'm pretty dammed certain that art is not. Which is not to say that it is not accumulative or accretionary. But the belief that sf writers are out there forecasting the future, that they have some social responsibility to do so, that's malarky, if you ask me. Writers of sf can only, at best, make educated guesses, and usually those guesses are wrong, and clumping together to form a consensus does not in any way insure against history unfolding in one of those other, unpredicted directions. People love to pick out the occasional instances where Jules Verne and William Gibson got it right; they rarely ever point fingers at their miscalls.

The Notebooks of Leonardo da Vinci (1883), XIX Philosophical Maxims. Morals. Polemics and Speculations.

Revue Scientifique (1871)
Variant translation: There are no such things as applied sciences, only applications of science.

The Tragic Sense of Life (1913), V : The Rationalist Dissolution

Postcard to Franz Overbeck, Sils-Maria (30 July 1881) as translated by Walter Kaufmann in The Portable Nietzsche (1954)
Context: I am utterly amazed, utterly enchanted! I have a precursor, and what a precursor! I hardly knew Spinoza: that I should have turned to him just now, was inspired by "instinct." Not only is his overtendency like mine—namely to make all knowledge the most powerful affect — but in five main points of his doctrine I recognize myself; this most unusual and loneliest thinker is closest to me precisely in these matters: he denies the freedom of the will, teleology, the moral world-order, the unegoistic, and evil. Even though the divergencies are admittedly tremendous, they are due more to the difference in time, culture, and science. In summa: my lonesomeness, which, as on very high mountains, often made it hard for me to breathe and make my blood rush out, is now at least a twosomeness. Strange! Incidentally, I am not at all as well as I had hoped. Exceptional weather here too! Eternal change of atmospheric conditions! — that will yet drive me out of Europe! I must have clear skies for months, else I get nowhere. Already six severe attacks of two or three days each. With affectionate love, Your friend.

Friedrich Nietzsche, in a postcard to Franz Overbeck, Sils-Maria (30 July 1881) as translated by Walter Kaufmann in The Portable Nietzsche (1954)
Context: I am utterly amazed, utterly enchanted! I have a precursor, and what a precursor! I hardly knew Spinoza : that I should have turned to him just now, was inspired by "instinct". Not only is his overtendency like mine — namely, to make all knowledge the most powerful affect — but in five main points of his doctrine I recognize myself; this most unusual and loneliest thinker is closest to me precisely in these matters : he denies the freedom of the will, teleology, the moral world-order, the unegoistic, and evil. Even though the divergencies are admittedly tremendous, they are due more to the difference in time, culture, and science. In summa: my lonesomeness, which, as on very high mountains, often made it hard for me to breathe and make my blood rush out, is now at least a twosomeness. Strange!

Source: Fifty years of information progress (1994), p. 9.

Cited from Lord Rayleigh, The Life of Sir J. J. Thomson (1943), p. 199.
Attributed

Source: Mindbridge (1976), Chapter 28 “Chapter Eight” (p. 104)