The Social Contract by Jean-Jacques Rousseau

It may be seen, from the last chapter, that the way in which general business is managed may give a clear enough indication of the actual state of morals and the health of the body politic. The more concert reigns in the assemblies, that is, the nearer opinion approaches unanimity, the greater is the dominance of the general will. On the other hand, long debates, dissensions and tumult proclaim the ascendancy of particular interests and the decline of the State.

This seems less clear when two or more orders enter into the constitution, as patricians and plebeians did at Rome; for quarrels between these two orders often disturbed the comitia, even in the best days of the Republic. But the exception is rather apparent than real; for then, through the defect that is inherent in the body politic, there were, so to speak, two States in one, and what is not true of the two together is true of either separately. Indeed, even in the most stormy times, the plebiscita of the people, when the Senate did not interfere with them, always went through quietly and by large majorities. The citizens having but one interest, the people had but a single will.