King Hammurabi is revealed the code of laws by the Mesopotamian sun god Shamash, also revered as the god of justice. Hugo Grotius, the founder of a purely rationalistic system of natural law, argued that law arises from both a social impulse—as Aristotle had indicated—and reason. Immanuel Kant believed a moral imperative requires laws “be chosen as though they should hold as universal laws of nature”. Jeremy Bentham and his student Austin, following David Hume, believed that this conflated the “is” and what “ought to be” problem. Bentham and Austin argued for law’s positivism; that real law is entirely separate from “morality”.
Formal legal rationality was his term for the key characteristic of the kind of coherent and calculable law that was a precondition for modern political developments and the modern bureaucratic state. Weber saw this law as having developed in parallel with the growth of capitalism. Other notable early …