The two great divisions of civil rule, the absolute, or regal as he calls it, and the political, Fortescue proceeds to deduce from the several originals of conquest and compact. Concerning the latter he declares emphatically a truth not always palatable to princes, that such governments were instituted by the people, and for the people's good; quoting St. Augustin for a similar definition of a political society. "As the head of a body natural cannot change its nerves and sinews, cannot deny to the several parts their proper energy, their due proportion and aliment of blood; neither can a king, who is the head of a body politic, change the laws thereof, nor take from the people what is theirs by right against their consent. Thus you have, sir, the formal institution of every political kingdom, from whence you may guess at the power which a king may exercise with respect to the laws and the subject. For he is appointed to protect his subjects in their lives, properties, and laws; for this very end and purpose he has the delegation of power from the people, and he has no just claim to any other power but this. Wherefore, to give a brief answer to that question of yours, concerning the different powers which kings claim over their subjects, I am firmly of opinion that it arises solely from the different natures of their original institution, as you may easily collect from what has been said. So the kingdom of England had its original from Brute, and the Trojans, who attended him from Italy and Greece, and became a mixed kind of government, compounded of the regal and political."[373] [Sidenote: Erroneous views taken by Hume.]