Quote by Descartes, René

"I think, therefore I am."

"The greatest minds are capable of the greatest vices as well as of the greatest virtues."

"Doubt is the key to knowledge."

"If you would be a real seeker of truth, it is necessary that at least once in your life you doubt, as far as possible, all things."

"Fear drives civilization. Without it, there is only chaos."

"Order through chaos. That's the only real answer."

"Politics and power corrupt when they're separated from purpose."

"The system isn't broken—it was built this way. We have to rebuild it."