If you would be a real seeker of truth, it is necessary that... - René Descartes

This quote is attributed to René Descartes.

"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."

René Descartes Courage

Philosopher and Mathematician French 1596–1650

More from René Descartes

"I think, therefore I am."

"Divide each difficulty into as many parts as is feasible and necessary to resolve it."

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

"Doubt is the key to knowledge."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."