There is, perhaps a certain national extent, within which the passions of men are easily communicated from one, or a few, to the whole; and there are certain numbers of men who can be assembled, and act in a body. If, while the society is not enlarged beyond this dimension, and while its members are easily assembled, political contentions arise, the state seldom fails to proceed on republican maxims, and to establish democracy. In most rude principalities, the leader derived his prerogative from the lustre of his race, and from the voluntary attachment of his tribe: the people he commanded were his friends, his subjects, and his troops. If we suppose, upon any change in their manners, that they cease to revere his dignity, that they pretend to equality among themselves, or are seized with a jealousy of his assuming too much, the foundations of his power are already withdrawn. When the voluntary subject becomes refractory; when considerable parties, or the collective body, choose to act for themselves; the small kingdom, like that of Athens, becomes of course a republic.

The changes of condition, and of manners, which, in the progress of mankind, raise up to nations a leader and a prince, create, at the same time, a nobility and a variety of ranks, who have, in a subordinate degree, their claim to distinction. Superstition, too, may create an order of men, who, under the title of priesthood, engage in the pursuit of a separate interest; who, by their union and firmness as a body, and by their incessant ambition, deserve to be reckoned in the list of pretenders to power. These different orders of men are the elements of whose mixture the political body is generally formed; each draws to its side some part from the mass of the people. The people themselves are a party upon occasion; and numbers of men, however classed and distinguished, become, by their jarring pretensions and separate views, mutual interruptions and checks; and have, by bringing to the national councils the maxims and apprehensions of a particular order, and by guarding a particular interest, a share in adjusting or preserving the political form of the state.

The pretensions of any particular order, if not checked by some collateral power, would terminate in tyranny; those of a prince, in despotism; those of a nobility or priesthood, in the abuses of aristocracy; of a populace, in the confusions of anarchy. These terminations, as they are never the professed, so are they seldom even the disguised object of party: but the measures which any party pursues, if suffered to prevail, will lead, by degrees, to every extreme.

In their way to the ascendant they endeavour to gain, and in the midst of interruptions which opposite interests mutually give, liberty may have a permanent or a transient existence; and the constitution may bear a form and a character as various as the casual combination of such multiplied parts can effect.

To bestow on communities some degree of political freedom, it is perhaps sufficient, that their members, either singly, or as they are involved with their several orders, should insist on their rights; that under republics, the citizen should either maintain his own equality with firmness, or restrain the ambition of his fellow citizen within moderate bounds; that under monarchy, men of every rank should maintain the honours of their private or their public stations; and sacrifice neither to the impositions of a court, nor to the claims of a populace, those dignities which are destined, in some measure, independent of fortune, to give stability to the throne, and to procure a respect to the subject.

Amidst the contentions of party, the interests of the public, even the maxims of justice and candour, are sometimes forgotten; and yet those fatal consequences which such a measure of corruption seems to portend, do not unavoidably follow. The public interest is often secure, not because individuals are disposed to regard it as the end of their conduct, but because each, in his place, is determined to preserve his own. Liberty is maintained by the continued differences and oppositions of numbers, not by their concurring zeal in behalf of equitable government. In free states, therefore, the wisest laws are never, perhaps, dictated by the interest and spirit of any order of men: they are moved, they are opposed, or amended, by different hands; and come at last to express that medium and composition which contending parties have forced one another to adopt.

When we consider the history of mankind in this view, we cannot be at a loss for the causes which, in small communities, threw the balance on the side of democracy; which, in states more enlarged in respect to territory and number of people, gave the ascendant to monarchy; and which, in a variety of conditions and of different ages, enabled mankind to blend and unite the characters of different forms; and, instead of any of the simple constitutions we have mentioned, [Footnote: Part I. Sect. 10.] to exhibit a medley of all.

In emerging from a state of rudeness and simplicity, men must be expected to act from that spirit of equality, or moderate subordination, to which they have been accustomed. When crowded together in cities, or within the compass of a small territory, they act by contagious passions, and every individual feels a degree of importance proportioned to his figure in the crowd, and the smallness of its numbers. The pretenders to power and dominion appear in too familiar a light to impose upon the multitude, and they have no aids at their call, by which they can bridle the refractory humours of a people who resist their pretensions. Theseus, king of Attica, we are told, assembled the inhabitants of its twelve cantons into one city. In this he took an effectual method to unite into one democracy, what were before the separate members of his monarchy, and to hasten the downfall of the regal power.

The monarch of an extensive territory has many advantages in maintaining his station. Without any grievance to his subjects, he can support the magnificence of a royal estate, and dazzle the imagination of his people, by that very wealth which themselves have bestowed. He can employ the inhabitants of one district against those of another; and while the passions that lead to mutiny and rebellion, can at any one time seize only on a part of his subjects, he feels himself strong in the possession of a general authority. Even the distance at which he resides from many of those who receive his commands, augments the mysterious awe and respect which are paid to his government.

With these different tendencies, accident and corruption, however, joined to a variety of circumstances, may throw particular states from their bias, and produce exceptions to every general rule. This has actually happened in some of the later principalities of Greece, and modern Italy, in Sweden, Poland, and the German Empire. But the united states of the Netherlands, and the Swiss cantons, are, perhaps, the most extensive communities, which, maintaining the union of nations, have, for any considerable time, resisted the tendency to monarchical government; and Sweden is the only instance of a republic established in a great kingdom on the ruins of monarchy.