Here, where he speaks of the good guys on the left, as if there were such a thing:
As a libertarian, I am reluctant to give up the word "liberal." It used to refer to laissez-faire economics and limited government. But since libertarians aren't ever going to be able to retrieve its original meaning, we should start using "liberal" to designate the good guys on the left, reserving "progressive" for those who are enthusiastic about an unrestrained regulatory state, who think it's just fine to subordinate the interests of individuals to large social projects, who cheer the president's abuse of executive power and who have no problem rationalizing the stifling of dissent.
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Simply stated, liberals are free, free from the "superstitions" of religion and its limiting dogmas and moral codes, and consequently happen to seek to be free also from the state which seeks to pay respect to religion. Libertarianism is born of this, not of the right. It pays no respect to religion, placing the individual at its center, not God and the transcendent moral order which permeates existence. There are many libertarians who deny they are atheists, but they are simply insane, suffering from bipolar disorder as do liberals.