Obstinacy

“An obstinate man does not hold opinions, but they hold him; for when he is once possessed with an error, it is, like a devil, only cast out with great difficulty.”

“We sometimes speak of stubborn facts. Nonsense! A fact is a mere babe when compared with a stubborn theory.”

“His still refuted quirks he still repeats,He dies disputing, and the contest ends.”

“Obstinacy is ever most positive when it is most in the wrong.”