Here we have a scholarly piece dealing with the concept of freedom and its interpretation by some "libertarians" who have an agenda that impinges upon the freedom of others i.e. the freedom to pollute, the freedom to exploit, the freedom to brandish weapons. The author skillfully distinguishes between "positive" and "negative" freedoms and goes on to question the motives of those who abuse language to encroach on the more fundamental freedoms of others.

the writer points out with perceptive examples, the differences between the abstract word, 'freedom' , and its abuse of using it from only a particular vague point of view, having little to do with its opposite of bondage or slavery or immurement. common today it's use is to promote both freedom from normal social constraints and from exploitation. i think it would be clearer to more readers if he had used the abstraction of 'two concepts of liberty' less and concrete examples more.