So that in the average equality of the emigrators were the seeds of a new constitution; and if they transplanted the form of monarchy, it already contained the genius of republicanism.

Hence, colonies in the ancient, as in the modern world, advanced by giant strides towards popular principles.
Maintaining a constant intercourse with their father-land, their own constitutions became familiar and tempting to the population of the countries they had abandoned; and much of whatsoever advantages were derived from the soil they selected, and the commerce they found within their reach, was readily attributed only to their more popular constitutions; as, at this day, we find American prosperity held out to our example, not as the result of local circumstances, but as the creature of political institutions.
One principal cause of the republican forms of government that began (as, after the Dorian migration, the different tribes became settled in those seats by which they are historically known) to spread throughout Greece, was, therefore, the establishment of colonies retaining constant intercourse with the parent states.

A second cause is to be found in the elements of the previous constitutions of the Grecian states themselves, and the political principles which existed universally, even in the heroic ages: so that, in fact, the change from monarchy to republicanism was much less violent than at the first glance it would seem to our modern notions.

The ancient kings, as described by Homer, possessed but a limited authority, like that of the Spartan kings--extensive in war, narrow in peace.

It was evidently considered that the source of their authority was in the people.