Who said “There seems to be some perverse human characteristic that likes to make easy things…”?

“It is not human nature we should accuse but the despicable conventions that pervert it.”

“What is called an acute knowledge of human nature is mostly nothing but the observer's own weaknesses reflected back from others.”

“The only thing that one really knows about human nature is that it changes. Change is the one quality we can predicate of it. The systems that fail are those that rely on the permanency of human nature, and not on its growth and development. The error of Louis XIV was that he thought human nature would always be the same. The result of his error was the French Revolution. It was an admirable result.”

“Human nature is not of itself vicious.”

“There is a great deal of human nature in people.”

“Our favorite holding period is forever.”

“Price is what you pay. Value is what you get.”

“Risk comes from not knowing what you're doing.”

“We enjoy the process far more than the proceeds.”

“A public opinion poll is no substitute for thought.”

“If a business does well, the stock eventually follows.”