Modern liberalism has many roots. One of the most important is the ideas of a man described by an American critic as 'his satanic free-trade majesty John Stuart Mill' and revered by others.
A colleague once described political theorists as people who were obsessed with two dozen books; after half a century of grappling with Mill's essay On Liberty, or Hobbes's Leviathan, I have sometimes thought two dozen might be a little on the high side.
Richard A. Posner is an extraordinary person. If he did not exist, it would be hard to believe that he could. (...) He writes with a flair that puts most journalists to shame and a depth of knowledge that puts most professors to shame.