Action and reaction

Definition and stakes

Portrait of Carl Gustav Carus Carl Gustav Carus,  Scientific Memoirs (1837)

“ From all this we are finally led to infer the universal connexion, the combination, the never-ceasing action and reaction of all the powers of nature, sometimes in sympathy, sometimes in antipathy, as necessary to the production of an immeasurably vast and magnificent whole,—an action and reaction which would be impossible, were not all originally pervaded by one living principle, were not all in this respect similar and allied to each other. ”
Source: Wikisource

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