"Loyalty to petrified opinions never yet broke a chain or freed a human soul in this world - and never will."

"The rule is perfect: in all matters of opinion our adversaries are insane."

"Whenever you find that you are on the side of the majority, it is time to reform."

"The smart way to keep people passive and obedient is to strictly limit the spectrum of acceptable opinion, but allow very lively debate within that spectrum - even encourage the more critical and dissident views. That gives people the sense that there's free thinking going on, while all the time the presuppositions of the system are being reinforced by the limits put on the range of the debate."

"It is only in folk tales, children's stories, and the journals of intellectual opinion that power is used wisely and well to destroy evil. The real world teaches very different lessons, and it takes willful and dedicated ignorance to fail to perceive them."

"Courage is the main quality of leadership, in my opinion, no matter where it is exercised. Usually it implies some risk — especially in new undertakings."

"People seem not to see that their opinion of the world is also a confession of character."

"When working on my choreography I am not always receptive to outside suggestions or opinions. I believe that if you have something in mind in the way of a creation, such as a new dance, a sequence, or an effect, you are certain to come up with inaccurate criticism and damaging results if you go around asking for opinions. "

"I've never had a humble opinion. If you've got an opinion, why be humble about it?"

"All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others."

"The greater the man, the less is he opinionative, he depends upon events and circumstances."

"What is the government? Nothing, unless supported by opinion. "

"Power is founded upon opinion."

"For having lived long, I have experienced many instances of being obliged, by better information or fuller consideration, to change opinions, even on important subjects, which I once thought right but found to be otherwise."

"He that is of the opinion money will do everything may well be suspected of doing everything for money."