Perfect competition is a theoretical concept like the Euclidian line, which has no width or depth. Just as we’ve never seen that line there has never… - Milton Friedman

Because we live in a largely free society, we tend to forget how limited is the span of time and the part of the globe for which there has ever been anything like political freedom: the typical state of mankind is tyranny, servitude, and misery. The nineteenth century and early twentieth century in the Western world stand out as striking exceptions to the general trend of historical development. Political freedom in this instance clearly came along with the free market and the development of capitalist institutions. So also did political freedom in the golden age of Greece and in the early days of the Roman era.

Political freedom means the absence of coercion of a man by his fellow men. The fundamental threat to freedom is power to coerce, be it in the hands of a monarch, a dictator, an oligarchy, or a momentary majority. The preservation of freedom requires the elimination of such concentration of power to the fullest possible extent and the dispersal and distribution of whatever power cannot be eliminated — a system of checks and balances.

I can understand the teachers saying it’s a gun at my head, but they’ve got the same gun at the parents’ head at the moment. The parent goes up to the teacher and says, well, I’m not satisfied with what you’re doing, and the teacher can say, well tough. You can’t take him away, you can’t move him, you can’t do what you like, so go away and stop bothering me. That can be the attitude of some teachers today, and often is. But now that the positions are being reversed [with vouchers] and the roles are changed, I can only say tough on the teachers. Let them pull their socks up and give us a better deal and let us participate more.