Ask the local gentry, and they will say it's elementary

From Terry Eagleton's review of The Anatomy of Fascism in The New Statesman

The assumption that the free market and political democracy go naturally together was always pretty dubious, and fascism is one dramatic refutation of it. But we might now be moving deeper into a world where the two go together like a horse and cabbage.

Uh, did he mean "carriage"?