I would say that in this world, the greatest source of inequality has been special privileges granted by government.

Corruption is government intrusion into market efficiencies in the form of regulations.

"Free markets" is a very general term. There are all sorts of problems that will emerge. Free markets work best when the transaction between two individuals affects only those individuals. Most often, a transaction between you and me affects a third party. That is the source of all problems for government. That is the source of all pollution problems, of the inequality problem. This reality ensures that the end of history will never come.

Congress can raise taxes because it can persuade a sizable fraction of the populace that somebody else will pay

We have a system that increasingly taxes work and subsidizes nonwork.

With some notable exceptions, businessmen favor free enterprise in general but are opposed to it when it comes to themselves.

We economists don't know much, but we do know how to create a shortage. If you want to create a shortage of tomatoes, for example, just pass a law that retailers can't sell tomatoes for more than two cents per pound. Instantly you'll have a tomato shortage. It's the same with oil or gas.