"We must first decide what the meaning of the term 'capitalism' really is. Unfortunately, the term 'capitalism' was coined by its greatest and most famous enemy, Karl Marx. We really can't rely upon him for correct and subtle usage. And, in fact, what Marx and later writers have done is to lump together two extremely different and even contradictory concepts and actions under the same portmanteau term. These two contradictory concepts are what I would call 'free-market capitalism' on the one hand, and 'state capitalism' on the other. The difference between free-market capitalism and state capitalism is precisely the difference between, on the one hand, peaceful, voluntary exchange, and on the other, violent expropriation."