Pessimists are just as illogical as optimists; insomuch as both envisage the aims of mankind as unified, and as having a direct relationship (either of frustration or of fulfilment) to the inevitable flow of terrestrial motivation and events. That is—both schools retain in a vestigial way the primitive concept of a conscious teleology—of a cosmos which gives a damn one way or the other about the especial wants and ultimate welfare of mosquitos, rats, lice, dogs, men, horses, pterodactyls, trees, fungi, dodos, or other forms of biological energy.

Source:Letter to James F. Morton (1929)
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