Proudhon, Pierre Joseph. System of Economical Contradictions: or, the Philosophy of Misery Electronic Text Center, University of Virginia Library 2. -- Inadequacy of theories and criticisms. We will record first an important observation: the contending parties agree in acknowledging a common authority, whose support each claims, -- SCIENCE. Plato, a utopian, organized his ideal republic in the name of science, which, through modesty and euphemism, he called philosophy. Aristotle, a practical man, refuted the Platonic utopia in the name of the same philosophy. Thus the social war has continued since Plato and Aristotle. The modern socialists refer all things to science one and indivisible, but without power to agree either as to its content, its limits, or its method; the economists, on their side, affirm that social science in no wise differs from political economy. It is our first bus...