This is from a fine article by Jonah Goldberg at Townhall:

Definitions vary, but broadly speaking, libertarianism is the idea that people should be as free as possible from state coercion so long as they don’t harm anyone.

Or as we put it in our Articles of Reason: My liberty should be limited by nothing except everyone else’s liberty.

The job of the state is limited to fighting crime, providing for the common defense, and protecting the rights and contracts of citizens. The individual is sovereign, he is the captain of himself.

It’s true, no ideal libertarian state has ever existed outside a table for one. And no such state will ever exist. But here’s an important caveat: No ideal state of any other kind will be created either. …

Ideals are …  goals, aspirations, abstract straight rules we use as measuring sticks against the crooked timber of humanity.

In the old Soviet Union, Mao’s China, Pol Pot’s Cambodia and today’s North Korea, they tried to move toward the ideal communist system. Combined, they killed about 100 million of their own people. That’s a hefty moral distinction right there: When freedom-lovers move society toward their ideal, mistakes may be made, but people tend to flourish. When the hard left is given free reign, millions are murdered and enslaved. Which ideal would you like to move toward?  …

How statism/collectivism  ever came to be an ideal is puzzling enough, but that there are millions who still want it after those calamitous experiments Jonah Goldberg names, remains to us a mystery beyond all comprehension.

It’s a little bizarre how the left has always conflated statism with modernity and progress. The idea that rulers – be they chieftains, kings, priests, politburos or wonkish bureaucrats – are enlightened or smart enough to tell others how to live is older than the written word. And the idea that someone stronger, with better weapons, has the right to take what is yours predates man’s discovery of fire by millennia. And yet, we’re always told that the latest rationalization for increased state power is the “wave of the future.”

That phrase, “the wave of the future,” became famous thanks to a 1940 essay by Anne Morrow Lindbergh. She argued that the time of liberal democratic capitalism was drawing to a close and the smart money was on statism of one flavor or another – fascism, communism, socialism, etc. What was lost on her, and millions of others, was that this wasn’t progress toward the new, but regression to the past. These “waves of the future” were simply gussied-up tribalisms, anachronisms made gaudy with the trappings of modernity, like a gibbon in a spacesuit. 

The only truly new political idea in the last couple thousand years is this libertarian idea, broadly understood. The revolution wrought by John Locke, Edmund Burke, Adam Smith and the Founding Fathers is the only real revolution going. And it’s still unfolding. …

We would add that this revolution has been advanced in thought further by Ludwig von Mises, Friedrich Hayek, Robert Nozick, and (more popularly) Ayn Rand, to name just some of the later philosophers of individual freedom.

What made the American experiment new were its libertarian innovations, broadly speaking. Moreover, those innovations made us prosper. …

I’m actually not a full-blown libertarian myself, but it’s an ideal I’d like America to move closer to, not further away from as we’ve been doing of late – bizarrely in the name of “progress” of all things.

Same goes for us.