“Satisfying natural desires is fine, but natural desires have a way of being both competitive and consequential.”

“It is of the nature of desire not to be satisfied, and most men live only for the gratification of it.”

“...capitalism satisfied the Christian demand for an institution that channels selfish human desire toward the betterment of society. Some critics accuse capitalism of being a selfish system, but the selfishness is not in capitalism - it is in human nature.”

“Erotic acts are instinctive; they fulfill a role in nature. The idea is familiar, but it is one that contains a paradox: there is nothing more natural than sexual desire; there is nothing less natural than the forms in which it is made manifest and satisfied.”

“Science embodies the human desire to understand nature; technology couples that desire with the ambition to control nature.”

“There is no desire more natural than the desire of knowledge. (Il n'est desir plus naturel que le desir de connaissance)”