Bill, I have never read that book but will attempt to locate a copy and read it.Suggest you read "The Ethics of Liberty" by Murray N. Rothbard.
Rothbard pretty well spells out what "liberty" is. Then I suggest you go the the Library of Congress "Chronicling America" website and read the old newspapers from about 1890-1910. You will see that in those days the American "political economy" as it was then called operated according to the principles of what was then called "Liberalism" (no relation to today's definition of liberalism). Those principles were essentially what is today called "libertarian" economics and closely resemble what Rothbard was talking about.
I am not a die-hard anything in regards to politics. I can find things in libertarianism that I can agree with but in general they go to the extreme. Same with Capitalism or Socialism. Turned completely loose neither is good. A regulated mixture is what the USA has always been and it works.
I read Ayn Rand's book Atlas Shrugged years ago and thought it pretty silly. A make believe view of the rich and powerful birth right to do what they wished when they wished. It to me was a view of the self-righteous right to wealth and power that came out of Europe thinking.
It amazes me that intelligent people can believe that system is a workable economic system for a society of a country. Yes, I realize that the wealthy would but the vast majority of Americans are not wealthy and are not going to be wealthy.
Today we have Paul Ryan a fervent follower in the past trying to hide it when running for V.P.
If you listened to Mitt Romney and Paul Ryan you could hear that self-righteous right of the very wealthy speaking.