To maintain the harmony of authority and obedience, to chastise the proud, to protect the weak, to reward the deserving, to banish vice and idleness from his dominions, to secure the traveller and merchant, to restrain the depredations of the soldier, to cherish the labors of the husbandman, to encourage industry and learning, and, by an equal and moderate assessment, to increase the revenue, without increasing the taxes, are indeed the duties of a prince . . .