The Wealth of Nations by Part 3 Chapter 3 Page 11

common protection of one another. The inhabitants of cities and burghs, considered as single individuals, had no power to defend themselves; but by entering into a league of mutual defence with their neighbours, they were capable of making no contemptible resistance.

The lords despised the burghers, whom they considered not only as of a different order, but as a parcel of emancipated slaves, almost of a different species from themselves. The wealth of the burghers never failed to provoke their envy and indignation, and they plundered them upon every occasion without mercy or remorse. The burghers naturally hated and feared the lords. The king hated and feared them too; but though perhaps he might despise, he had no reason either to hate or fear the burghers. Mutual interest, therefore, disposed them to support the king,