Libertarian philosophy lowers the logical and evidentiary standards for libertarian social science: if one believes that redistribution and regulation are immoral anyway because they violate self-ownership rights, then it is understandable that one would have a cavalier attitude about proving that redistribution and regulation cause unhappiness or disorder, or that they always serve the venal interests of politicians and bureaucrats. The orthodox libertarian schema implies that these consequentialist arguments are superfluous.

p. 445 - What's wrong with Libertarianism