"Positivism eliminates any kind of natural law principle – for example, that there are economic laws which can be transgressed only at your peril. With positivism, there is a tendency to leap into ad hoc economic theory."
- Murray RothbardDuring the 20th century, Murray Rothbard, a prominent economist and philosopher, made important contributions to libertarian philosophy. He thought that rather than being based on capricious laws established by governments or other organizations, economics should be based on ideas drawn from human n…