Friedrich Hayek on Walter Block's libertarian classic

Looking through Defending the Undefendable made me feel that I was once more exposed to the shock therapy by which, more than 50 years ago, the late Ludwig von Mises converted me to a consistent free market position.  Even now I am occasionally at first incredulous and feel that this is going too far, but usually find in the end that you are right.  Some may find it too strong a medicine, but it will still do them good, even if they hate it.  A real understanding of economics demands that one disabuses onself of many dear prejudices and illusions.  Popular fallacies in economics frequently express themselves in unfounded prejudices against other occupations and, in showing the falsity of these stereotypes, you are doing a real service, although you will not make yourself more popular with the majority.

~ Friedrich Hayek, commentary about Defending the Undefendable, 1991 edition