Who said "There is nothing so deceptive as an obvious fact."?

This quote is attributed to Sherlock Holmes.

There is nothing so deceptive as an obvious fact. - Sherlock Holmes

"There is nothing so deceptive as an obvious fact."

Sherlock Holmes Truth

Character in The Hound of the Baskervilles

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"The world is full of obvious things which nobody by any chance ever observes."

"The moor is a dangerous place, Watson."

"I cannot but think that you are justified in your caution."

"One should always look for a possible alternative."

"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."