These circumstances explain, why the censorship became the pivot of the later republican constitution; why an office, originally standing by no means in the first rank, came to be gradually invested with external insignia which did not at all belong to it in itself and with an altogether unique aristocratic-republican glory, and was viewed as the crown and completion of a well-conducted public career; and why the government looked upon every attempt of the opposition to introduce their men into this office, or even to hold the censor responsible to the people for his administration during or after his term of office, as an attack on their palladium, and presented a united front of resistance to every such attempt. It is sufficient in this respect to mention the storm which the candidature of Cato for the censorship provoked, and the measures, so extraordinarily reckless and in violation of all form, by which the senate prevented the judicial prosecution of the two unpopular censors of the year 550. But with their magnifying the glory of the censorship the government combined a characteristic distrust of this, their most important and for that very reason most dangerous, instrument. It was thoroughly necessary to leave to the censors absolute control over the personal composition of the senate and the equites; for the right of exclusion could not well be separated from the right of summoning, and it was indispensable to retain such a right, not so much for the purpose of removing from the senate capable men of the opposition - a course which the smooth-going government of that age cautiously avoided - as for the purpose of preserving around the aristocracy that moral halo, without which it must have speedily become a prey to the opposition. The right of ejection was retained; but what they chiefly needed was the glitter of the naked blade - the edge of it, which they feared, they took care to blunt. Besides the check involved in the nature of the office - under which the lists of the members of the aristocratic corporations were liable to revision only at intervals of five years - and besides the limitations resulting from the right of veto vested in the colleague and the right of cancelling vested in the successor, there was added a farther check which exercised a very sensible influence; a usage equivalent to law made it the duty of the censor not to erase from the list any senator or knight without specifying in writing the grounds for his decision, or, in other words, adopting, as a rule, a quasi-judicial procedure.
In this political position - mainly based on the senate, the equites, and the censorship - the nobility not only usurped in substance the government, but also remodelled the constitution according to their own views. It was part of their policy, with a view to keep up the appreciation of the public magistracies, to add to the number of these as little as possible, and to keep it far below what was required by the extension of territory and the increase of business. Only the most urgent exigencies were barely met by the division of the judicial functions hitherto discharged by a single praetor between two judges - one of whom tried the lawsuits between Roman burgesses, and the other those that arose between non-burgesses or between burgess and non-burgess - in 511, and by the nomination of four auxiliary consuls for the four transmarine provinces of Sicily (527), Sardinia including Corsica (527), and Hither and Further Spain (557). The far too summary mode of initialing processes in Rome, as well as the increasing influence of the official staff, are doubtless traceable in great measure to the practically inadequate numbers of the Roman magistracy.
Among the innovations originated by the government - which were none the less innovations, that almost uniformly they changed not the letter, but merely the practice of the existing constitution - the most prominent were the measures by which the filling up of officers' posts as well as of civil magistracies was made to depend not, as the letter of the constitution allowed and its spirit required, simply on merit and ability, but more and more on birth and seniority. As regards the nomination of staff-officers this was done not in form, but all the more in substance. It had already, in the course of the previous period, been in great part transferred from the general to the burgesses[13]; in this period came the further step, that the whole staff-officers of the regular yearly levy - the twenty-four military tribunes of the four ordinary legions - were nominated in the comitia tributai. Thus a line of demarcation more and more insurmountable was drawn between the subalterns, who gained their promotion from the general by punctual and brave service, and the staff, which obtained its privileged position by canvassing the burgesses[14]. With a view to check simply the worst abuses in this respect and to prevent young men quite untried from holding these important posts, it became necessary to require, as a preliminary to the bestowal of staff appointments, evidence of a certain number of years of service. Nevertheless, when once the military tribunate, the true pillar of the Roman military system, was laid down as the first stepping-stone in the political career of the young aristocrats, the obligation of service inevitably came to be frequently eluded, and the election of officers became liable to all the evils of democratic canvassing and of aristocratic exclusiveness. It was a cutting commentary on the new institution, that in serious wars (as in 583) it was found necessary to suspend this democratic mode of electing officers, and to leave once more to the general the nomination of his staff.
In the case of civil offices, the first and chief object was to limit re-election to the supreme magistracies. This was certainly necessary, if the presidency of annual kings was not to be an empty name; and even in the preceding period reelection to the consulship was not permitted till after the lapse often years, while in the case if the censorship it was altogether forbidden[15]. No farther law was passed in the period before us; but an increased stringency in its application is obvious from the fact that, while the law as to the ten years' interval was suspended in 537 during the continuance of the war in Italy, there was no farther dispensation from it afterwards, and indeed towards the close of this period re-election seldom occurred at all. Moreover, towards the end of this epoch (574) a decree of the people was issued, binding the candidates for public magistracies to undertake them in a fixed order of succession, and to observe certain intervals between the offices, and certain limits of age. Custom, indeed, had long prescribed both of these; but it was a sensibly felt restriction of the freedom of election, when the customary qualification was raised into a legal requirement, and the right of disregarding such requirements in extraordinary cases was withdrawn from the elective body. In general, admission to the senate was thrown open to persons belonging to the ruling families without distinction as to ability, while not only were the poorer and humbler ranks of the population utterly precluded from access to the offices of government, but all Roman burgesses not belonging to the hereditary aristocracy were practically excluded, not indeed exactly from the senate, but from the two highest magistracies, the consulship and the censorship. After Manius Curius and Gaius Fabricius[16], no instance can be pointed out of a consul who did not belong to the social aristocracy, and probably no instance of the kind occurred at all. But the number of the gentes, which appear for the first time in the lists of consuls and censors in the half-century from the beginning of the war with Hannibal to the close of that with Perseus, is extremely limited; and by far the most of these, such as the Flaminii, Terentii, Porcii, Acilii, and Laelii, may be referred to elections by the opposition, or are traceable to special aristocratic connections. The election of Gaius Laelius in 564, for instance, was evidently due to the Scipios. The exclusion of the poorer classes from the government was, no doubt, required by the altered circumstances of the case. Now that Rome had ceased to be a purely Italian state and had adopted Hellenic culture, it was no longer possible to take a small farmer from the plough and to set him at the head of the community. But it was neither necessary nor beneficial that the elections should almost without exception be confined to the narrow circle of the curule houses, and that a "new man" could only make his way into that circle by a sort of usurpation[17]. No doubt a certain hereditary character was inherent not merely in the nature of the senate as an institution, in so far as it rested from the outset on a representation of the clans[18], but in the nature of aristocracy generally, in so far as statesmanly wisdom and statesmanly experience are bequeathed from the able father to the able son, and the inspiring spirit of an illustrious ancestry fans every noble spark within the human breast into speedier and more brilliant flame. In this sense the Roman aristocracy had been at all times hereditary; in fact, it had displayed its hereditary character with great naivete in the old custom of the senator taking his sons with him to the senate, and of the public magistrate decorating his sons, as it were by anticipation, with the insignia of the highest official honour - the purple border of the consular, and the golden amulet-case of the triumphator. But, while in the earlier period the hereditariness of the outward dignity had been to a certain extent conditioned by the inheritance of intrinsic worth, and the senatorial aristocracy had guided the state not primarily by virtue of hereditary right, but by virtue of the highest of all rights of representation - the right of the excellent, as contrasted with the ordinary, man - it sank in this epoch (and with specially great rapidity after the end of the Hannibalic war) from its original high position, as the aggregate of those in the community who were most experienced in counsel and action, down to an order of lords filling up its ranks by hereditary succession, and exercising collegiate misrule.