Quote by Pierre-Joseph Proudhon

“Descartes, reasoning unconsciously according to the prejudices of the old metaphysics, and seeking an unshakable foundation for philosophy, an aliquid inconcussum, as it was said, imagined that he had found it in the self, and posited this principle: I think, therefore I am; Cogito, ergo sum. Descartes did not realize that his base, supposedly immobile, was mobility itself. Cogito, I think—these words express movement; and the conclusion, according to the original sense of the verb to be, sum, ειναι, ou חיח, (haïah), is still movement. He should have said: Moveor, ergo fio, I move, therefore I become!”

Quote by Pierre-Joseph Proudhon