doubt quotes

“Doubt is the father of invention.”

— Ambrose Bierce

“It is beyond a doubt that all our knowledge that begins with experience.”

— Immanuel Kant

“Our doubts are traitors and make us lose the good we oft might win by fearing to attempt.”

— William Shakespeare

“Any truth is better than indefinite doubt.”

— Arthur Conan Doyle

“They who have conquered doubt and fear have conquered failure.”

— James Allen

“Doubt is not the opposite of faith; it is one element of faith.”

— Paul Tillich