“It must be that there is something in the hearts of human beings, some natural fluid perhaps, that insists on happiness, even confronted with the most powerful arguments against it.”

“The argument for liberty is not an argument against organization, which is one of the most powerful tools human reason can employ, but an argument against all exclusive, privileged, monopolistic organization, against the use of coercion to prevent others from doing better.”

“Human nature being what it is, people will insist upon getting some pleasure out of life.”

“And your doubt can become a good quality if you train it. It must become knowing, it must become criticism. Ask it, whenever it wants to spoil something for you, why something is ugly, demand proofs from it, test it, and you will find it perhaps bewildered and embarrased, perhaps also protesting. But don't give in, insist on arguments, and act in this way, attentive and persistent, every single time, and the day will come when, instead of being a destroyer, it will become one of your best workers--perhaps the most intelligent of all the ones that are building your life.”

“We are all exceptional cases. We all want to appeal against something! Each of us insists on being innocent at all cost, even if he has to accuse the whole human race and heaven itself.”

“It is a predisposition of human nature to consider an unpleasant idea untrue, and then it is easy to find arguments against it.”