The Twilight of the Idols · Friedrich Wilhelm Nietzsche
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_A Moral for Psychologists._ Do not go in for any note-book psychology! Never observe for the sake of observing! Such things lead to a false point of view, to a squint, to something forced and exaggerated. To experience things on purpose—this is not a bit of good. In the midst of an experience a man should not turn his eyes upon himself; in such cases any eye becomes the “evil eye.” A born psychologist instinctively avoids seeing for the sake of seeing. And the same holds good of the born painter. Such a man never works “from nature,”—he leaves it to his instinct, to his _camera obscura_ to sift and to define the “fact,” “nature,” the “experience.” The general idea, the conclusion, the result, is the only thing that reaches his consciousness. He knows nothing of that wilful process of deducing from particular cases. What is the result when a man sets about this matter differently?—when, for instance, after the manner of Parisian novelists, he goes in for note-book psychology on a large and small scale? Such a man is constantly spying on reality, and every evening he bears home a handful of fresh curios.... But look at the result!—a mass of daubs, at best a piece of mosaic, in any case something heaped together, restless and garish. The Goncourts are the greatest sinners in this respect: they cannot put three sentences together which are not absolutely painful to the eye—the eye of the psychologist. From an artistic standpoint, nature is no model. It exaggerates, distorts, and leaves gaps. Nature is the _accident._ To study “from nature” seems to me a bad sign: it betrays submission, weakness, fatalism—this lying in the dust before trivial facts is unworthy of a thorough artist. To see _what is_—is the function of another order of intellects, the _anti-artistic,_ the matter-of-fact. One must know _who_ one is.
Text from Project Gutenberg, public domain in the United States.