This is a speech delivered by the author at the Liberty Political Action Conferene in Reno, Nevada, on September 15, 2011: Introduction The phenomenon that has arrested our attention and that is the object of our concerns is something that we call “liberty.” Indeed, if our political universe can be said to consist of ideas, then the idea of liberty is the center around which every other revolves. Partisans of every conceivable variety, if they insist upon engaging in our political discourse, simply have no option but to become fluent in the language of liberty. The idiom of liberty has prevailed over all others, not just within the contemporary Western world, but well beyond it. In America, especially, one would no more think to deny the value of liberty than one would think to deny the values of compassion, justice, or any other virtue. Still, just because the rhetoric of liberty springs effortlessly from our lips does not mean, necessarily, that we know that of which we speak. It is true, no doubt, that, not unlike any number of other concepts with which we are acquainted, “liberty” is not something that is easy to define. And, not unlike any other concept, the challenges of defining liberty, we are confident, do not preclude us from identifying it when we see it. Whether this self-assurance is justified, however, is another question.