Who said "All that is clear and distinct is true."?

This quote is attributed to Descartes, René.

All that is clear and distinct is true. - Descartes, René

"All that is clear and distinct is true."

Descartes, René Truth

Philosopher-Mathematician French 1596–1650

"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."

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."