What does it mean to opine in politics? The founder of sociology Auguste Comte answered to this question in such an articulated manner to destabilize our current liberal values about consensus and representation. Indeed, his entire philosophical effort, can be regarded as attempt to redefine relations between liberty of all and scientific specialized knowledge. Through a fight engaged against metaphysical way to overtake theological stage, his positivism carries out a radical critic to the subjective rights’ constitutionalism, deemed unable to preserve both order and progress. Separating powers into a ‘spiritual’ and a ‘material’ one, boosting up our innate altruism, subordinating social solidarity to human continuity, are some of Comtean strategies to inaugurate a new duties’ era, in which the opinion government has the task of translate the ego-alter conflict in a religious dualism between Humanity and Earth.