"The only way to get rid of a temptation is to yield to it."

"Men fear thought as they fear nothing else on earth — more than ruin, more than death."

"The greatest part of what is called morality is merely a device for making others do our will."

"Anything you're good at, you can make money from. Don't let anyone tell you otherwise."

"The most fundamental of all moral duties is to exercise our intelligence to the utmost."