Proudhon, Pierre Joseph. System of Economical Contradictions: or, the Philosophy of Misery Electronic Text Center, University of Virginia Library III. It remains for me to tell why, in a work on political economy, I have felt it necessary to start with the fundamental hypothesis of all philosophy. And first, I need the hypothesis of God to establish the authority of social science. -- When the astronomer, to explain the system of the world, judging solely from appearance, supposes, with the vulgar, the sky arched, the earth flat, the sun much like a football, describing a curve in the air from east to west, he supposes the infallibility of the senses, reserving the right to rectify subsequently, after further observation, the data with which he is obliged to start. Astronomic philosophy, in fact, could not admit a priori that the senses deceive us, and that we do not see what we do see: admittin...