Doubt

• It's healthy now and then to hang a question mark on things you've long taken for granted. — Bertrand Russell
• The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts. — Bertrand Russell
• Our doubts are traitors and make us lose the good we oft might win by fearing to attempt. — Shakespeare
• Doubt is not a pleasant condition but certainty is an absurd one. — Voltaire
• Freedom of speech and freedom of action are meaningless without freedom to think. And there is no freedom of thought without doubt.— Bergen Evans
• Doubt is part of all religion. All the religious thinkers were doubters. — Isaac Bashevis Singer
• I respect faith, but doubt is what gets you an education. — Wilson Mizner
• To philosophize is to doubt. — Montaigne
• By doubting we come at truth. — Cicero
• It is easier to believe than to doubt. — Everett D. Martin
• Four be the things I'd have been better without: love, curiosity, freckles and doubt. — Dorothy Parker
• Doubt is the vestibule which all must pass before they can enter the temple of wisdom. When we are in doubt and puzzle out the truth by our own exertions, we have gained something that will stay by us and will serve us again. But if to avoid the trouble of the search we avail ourselves of the superior information of a friend, such knowledge will not remain with us; we have not bought, but borrowed it. — C. C. Colton