Santayana: Stubbornness is one of the root impulses that dwells in the soul.

Maxwell Morz: The opposite of stubbornness is also opportunity. If we are not stubborn, then remove the emotional scars, prepare to create every day, obey the rules of life ourselves, and then follow the rules with others, opportunities will follow.

John Dryden: People who are opinionated often do the wrong thing.

Shakespeare: Although power is a stubborn bear, gold can pull its nose away.

Emerson: The reason why mediocre people are mediocre is because their thoughts are ignorant and stubborn.