" To accept the Church's monopoly of the subjective life, or to surrender it to muddled magic and vulgar superstition, was to set limits to the examination of human experience and the pursuit of truth. The inner life could not remain forever a no-man's land, where saints, gypsies, lords, beggars, artists, and lunatics had established squatters' rights and wasted precious human energy erecting an endless series of crazy, flimsy structures. In turning his back on the realities of subjective life, Descartes rejected the possibility of creating a unified world picture that would do justice to every aspect of human experience-that indispensable pre-condition for the 'next development of man. "

― Lewis Mumford , The Pentagon of Power (The Myth of the Machine, Vol 2)