"As natural selection acts by competition, it adapts the inhabitants of each country only in relation to the degree of perfection of their associates; so that we need feel no surprise at the inhabitants of any one country, although on the ordinary view supposed to have been specially created and adapted for that country, being beaten and supplanted by the naturalised productions from another land."

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The more I think about myself, the more I'm persuaded that, as a person, I really don't exist. That is one of the reasons why I can't believe in any orthodox religion: I cannot believe in my own soul. No, I am a chemical compound, conditioned by environment and education. My "character" is simply a repertoire of acquired tricks, my conversation a repertoire of adaptations and echoes, my "feelings" are dictated by purely physical, external stimuli.

— Christopher Isherwood