A particular mode of signifying may be unimportant, but it is always important that it is a possible mode of signifying. And that is generally so in philosophy: again and again the individual case turns out to be unimportant, but the possibility of each individual case discloses something about the essence of the world. The notion that any possible (i.e. coherent, sensical) state of affairs reveals something vital about the "essence of the world" is among the most elegant defences of the enterprise of fiction offered by a philosopher in the twentieth century, however unwittingly.

Ludwig Wittgenstein, Tractatus Logico-Philosophicus. Accepted translation.

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