“The beginning of wisdom is found in doubting; by doubting we come to the question, and by seeking we may come upon the truth.” – Pierre Abelard

“Doubt … is an illness that comes from knowledge and leads to madness.” – Gustave Flaubert

“The minute you begin to have doubts, the floor under your feet starts to shake.” – Kobo Abe

“I will listen to anyone’s convictions, but pray keep your doubts to yourself.” – Johann Wolfgang von Goethe

“Modest doubt is called the beacon of the wise.” – William Shakespeare

“Doubt is the incentive to truth and inquiry leads the way.” – Hosea Ballou

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

“Just think of the tragedy of teaching children not to doubt.” – Clarence Darrow

“Doubt can only be removed by action.” – Johann Wolfgang von Goethe

“Doubt is what gets you an education.” – Wilson Mizne

“To believe with certainty we must begin with doubting.” – Stanislaw Leszczynski

“Doubt grows with knowledge.” – Johann Wolfgang von Goethe