The essay, with its analytical approach to the definition of political concepts, re-introduced the study of political philosophy to the methods of analytic philosophy. It is also one of Berlin's first expressions of his ethical ontology of value-pluralism. Berlin defined negative liberty, as the term "liberty" was used by Thomas Hobbes, as the absence of coercion, or interference with, agents' possible private actions, by an exterior social-body, and as a comparatively recent political ideal, which, Berlin later writes, re-emerged in the late 17th century, after its slow and inarticulate birth in the Ancient doctrines of Antiphon the Sophist, the Cyrenaic discipleship, and of Otanes after the death of pseudo-Smerdis. In an introduction to the essay, Berlin writes:
"As for Otanes, he wished neither to rule nor to be ruled — the exact opposite of Aristotle's notion of true civic liberty... remains isolated and, until Epicurus, undeveloped... the notion had not explicitly emerged".
Famous quotes containing the words concepts and/or liberty:
“During our twenties...we act toward the new adulthood the way sociologists tell us new waves of immigrants acted on becoming Americans: we adopt the host cultures values in an exaggerated and rigid fashion until we can rethink them and make them our own. Our idea of what adults are and what were supposed to be is composed of outdated childhood concepts brought forward.”
—Roger Gould (20th century)
“The philosopher is like a man fasting in the midst of universal intoxication. He alone perceives the illusion of which all creatures are the willing playthings; he is less duped than his neighbor by his own nature. He judges more sanely, he sees things as they are. It is in this that his liberty consistsin the ability to see clearly and soberly, in the power of mental record.”
—Henri-Frédéric Amiel (18211881)