En este ensayo pol mico, Herbert Spencer establece los principios de su filosof a evolutiva, esbozando la idea de que toda la naturaleza evoluciona en una direcci n positiva hacia la perfecci n. Con su estilo claro y su enfoque cient fico, Spencer desaf a las creencias religiosas de su poca y argumenta que la evoluci n es una ley natural que rige el mundo entero.
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