Who said "To err is human; to persist in error is the mark of a knave."?

This quote is attributed to Don Quixote.

To err is human; to persist in error is the mark of a knave. - Don Quixote

"To err is human; to persist in error is the mark of a knave."

Don Quixote Wisdom

Character in Don Quixote

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"The Knight of the Sorrowful Countenance"

"I know who I am, and who I may be, if I choose."

"Facts are the enemy of truth."

"The pen is mightier than the sword."

"I'm not angry, I'm just disappointed."

"The best things in life are free."

"You can't have everything in life, but you can have what matters most."

"A woman's intuition is rarely wrong."