"For everything outside the phenomenal world, language can only be used allusively, but never even approximately in a comparative way, since, corresponding as it does to the phenomenal world, it is concerned only with property and its relations."

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All organs of an animal form a single system, the parts of which hang together, and act and re-act upon one another; and no modifications can appear in one part without bringing about corresponding modifications in all the rest.

— Georges Cuvier