Greece, with just 11 million people and 2 percent of the euro zone’s GDP, is unlikely to cause a contagion by leaving the zone. If it also leaves the misbegotten European Union, this evidence of the E.U.’s mutability might encourage Britain’s “euro-skeptics” when, later this year, that nation has a referendum on reclaiming national sovereignty by withdrawing from the E.U. If Greece so cherishes its sovereignty that it bristles at conditions imposed by creditors, why is it in the E.U., the perverse point of which is to “pool” nations’ sovereignties in order to dilute national consciousness?

The E.U. has a flag no one salutes, an anthem no one sings, a president no one can name, a parliament whose powers subtract from those of national legislatures, a bureaucracy no one admires or controls and rules of fiscal rectitude that no member is penalized for ignoring. It does, however, have in Greece a member whose difficulties are wonderfully didactic.

It cannot be said too often: There cannot be too many socialist smashups. The best of these punish reckless creditors whose lending enables socialists to live, for a while, off of other people’s money. The world, which owes much to ancient Athens’ legacy, including the idea of democracy, is indebted to today’s Athens for the reminder that reality does not respect a democracy’s delusions.