The usurper was forthcoming when long conflicts between the nobility and the people, and between the different factions of the nobility, had awakened the desire for a strong government, and when bands of mercenaries ready and willing to sell their aid to the highest bidder had superseded the general levy of the citizens which party leaders now found unsuited to their purposes.The tyrants destroyed the freedom of most of the cities; here and there they were expelled, but not thoroughly, or only for a short time; and they were always restored, since the inward conditions were favourable to them, and the opposing forces were exhausted.
Among the cities which maintained their independence are two of deep significance for the history of the human race: Florence, the city of incessant movement, which has left us a record of the thoughts and aspirations of each and all who, for three centuries, took part in this movement, and Venice, the city of apparent stagnation and of political secrecy.No contrast can be imagined stronger than that which is offered us by these two, and neither can be compared to anything else which the world has hitherto produced.