If entrepreneurs were running schools, instead of bureaucrats, schools would be teaching a lot more of the skills and mindsets found in this book. Since they're not, this book is a necessary antidote to a traditional college education.
In order for an act to be a crime, libertarians say, someone must be harmed - there must be a victim. Anything that's peaceful, voluntary, and honest should be tolerated regardless of whether we agree with it. Part of the price of our own freedom is allowing others to be free.