"Almost all of our relationships begin and most of them continue as forms of mutual exploitation, a mental or physical…"

"Organisms sip energy, because they have to work or barter for every single bit that they get."

"All exchange stimulates productive activity, whether exchange by gift, gambling, barter, or money transaction."

"All government, indeed every human benefit and enjoyment, every virtue, and every prudent act, is founded on compromi…"

"And the foregoing of possessions for which others barter the last possibility of freedom will become easy."

"I can smile with pity at the infidel whose vanity makes him dream that I should barter such a blessing for the few su…"

"It is my right to be uncommon. For I do not choose to be a common man, If I can, I seek opportunity. I do not wish to…"

"It is a clear truth that those who every day barter away other men's liberty will soon care little for their own."

"I confidently predict the collapse of capitalism and the beginning of history. Something will go wrong in the machine…"

"The original form of trade was barter trade, defined as the direct exchange of goods and services for other goods and…"