The present book contains a collection of aphorisms grouped into six sets of topics, all related to the overarching topic of liberty and useful in highlighting its various facets. Liberty is the central element of human nature. It is the essence of will, the source of creativity, and a prerequisite of virtue. As such, it is also the driving force of civilization and the foundation of any working society. And yet, being an abstract concept, its precise nature is often inadequately understood. This is unfortunate, since, while liberty can work its miracles when used by those who understand it...

Libertarianism is the social philosophy that identifies individual liberty as the most fundamental social value and, by extension, treats voluntary cooperation as the only morally permissible form of social interaction. This succinct work addresses some common doubts about libertarian theory centered around the claim that it has to balance its excessive moral ambition with the requisite degree of "realism," "practicality," and "compromising." To that extent, it addresses subjects ranging from the usefulness of ethical principles, to the feasibility of efficient interventionism, to the...