“If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.”— Jeff Bezos
“The only people who do not change their minds are idiots, inmates of asylums, and the dead.”— Everett Dirksen
“Life is not a static thing. The only people who do not change their minds are idiots in asylums, who can't, and idiots in the cemetery, who are dead.”— Finley Peter Dunne
“A wise man adapts himself to circumstances, as water shapes itself to the vessel that contains it.”— Thomas Fuller
“What I've come to learn is that leadership is not to be measured by the ability to stick with a course of action, but rather by the ability to be flexible.”— Doris Kearns Goodwin
“I have always believed that one should not be rigid and stand in one place. One should be ready to adjust to the circumstances.”— Hussein of Jordan