The powers of the senate underwent scarcely any change in form. The senate carefully avoided giving a handle to opposition or to ambition by unpopular changes, or manifest violations, of the constitution; it permitted, though it did nor promote, the enlargement in a democratic direction of the power of the burgesses. But while the burgesses acquired the semblance, the senate acquired the substance of power - a decisive influence over legislation and the official elections, and the whole control of the state.

Every new project of law was subjected to a preliminary deliberation in the senate, and scarcely ever did a magistrate venture to lay a proposal before the community without or in opposition to the senate's opinion. If he did so, the senate had - in the intercessory powers of the magistrates and the annulling powers of the priests - an ample set of means at hand to nip in the bud, or subsequently to get rid of, obnoxious proposals; and in case of extremity it had in its hands as the supreme administrative authority not only the executing, but the power of refusing to execute, the decrees of the community. The senate further with tacit consent of the community claimed the right in urgent cases of absolving from the laws, under the reservation that the community should ratify the proceeding - a reservation which from the first was of little moment, and became by degrees so entirely a form that in later times they did not even take the trouble to propose the ratifying decree.

As to the elections, they passed, so far as they depended on the magistrates and were of political importance, practically into the hands of the senate. In this way it acquired, as has been mentioned already[25], the right to appoint the dictator. Great regard had certainly to be shown to the community; the right of bestowing the public magistracies could not be withdrawn from it; but, as has likewise been already observed, care was taken that this election of magistrates should not be constructed into the conferring of definite functions, especially of the posts of supreme command when war was imminent. Moreover the newly introduced idea of special functions on the one hand, and on the other the right practically conceded to the senate of dispensation from the laws, gave to it an important share in official appointments. Of the influence which the senate exercised in settling the official spheres of the consuls in particular, we have already spoken[26]. One of the most important applications of the dispensing right was the dispensation of the magistrate from the legal term of his tenure of office - a dispensation which, as contrary to the fundamental laws of the community, might not according to Roman state-law be granted in the precincts of the city proper, but beyond these was at least so far valid that the consul or praetor, whose term was prolonged, continued after its expiry to discharge his functions "in a consul's or praetor's stead" (pro consulepro praetore). Of course this important right of extending the term of office - essentially on a par with the right of nomination - belonged by law to the community alone, and at the beginning was in fact exercised by it; but in 447, and regularly thenceforward, the command of the commander-in-chief was prolonged by mere decree of the senate. To this was added, in fine, the preponderating and skilfully concerted influence of the aristocracy over the elections, which guided them ordinarily, although not always, to the choice of candidates agreeable to the government.

Finally as regards administration, war, peace and alliances, the founding of colonies, the assignation of lands, building, in fact every matter of permanent and general importance, and in particular the whole system of finance, depended absolutely on the senate. It was the senate which annually issued general instructions to the magistrates, settling their spheres of duty and limiting the troops and moneys to be placed at the disposal of each; and recourse was had to its counsel in every case of importance. The keepers of the state-chest could make no payment to any magistrate with the exception of the consul, or to any private person, unless authorized by a previous decree of the senate. In the management, however, of current affairs and in the details of judicial and military administration the supreme governing corporation did not interfere; the Roman aristocracy had too much political judgment and tact to desire to convert the control of the commonwealth into a guardianship over the individual official, or to turn the instrument into a machine.

That this new government of the senate amidst all its retention of existing forms involved a complete revolutionizing of the old commonwealth, is clear. That the free action of the burgesses should be arrested and benumbed; that the magistrates should be reduced to be the presidents of its sittings and its executive commissioners; that a corporation for the mere tendering of advice should seize the inheritance of both the authorities sanctioned by the constitution and should become, although under very modest forms, the central government of the state - these were steps of revolution and usurpation. Nevertheless, if any revolution or any usurpation appears justified before the bar of history by exclusive ability to govern, even its rigorous judgment must acknowledge that this corporation timeously comprehended and worthily fulfilled its great task.  Called to power not by the empty accident of birth, but substantially by the free choice of the nation; confirmed every fifth year by the stern moral judgment of the worthiest men; holding office for life, and so not dependent on the expiration of its commission or on the varying opinion of the people; having its ranks close and united ever after the equalization of the orders; embracing in it all the political intelligence and practical statesmanship that the people possessed; absolute in dealing with all financial questions and in the guidance of foreign policy; having complete power over the executive by virtue of its brief duration and of the tribunician intercession which was at the service of the senate after the termination of the quarrels between the orders - the Roman senate was the noblest organ of the nation, and in consistency and political sagacity, in unanimity and patriotism, in grasp of power and unwavering courage, the foremost political corporation of all times - still even now an "assembly of kings," which knew well how to combine despotic energy with republican self-devotion. Never was a state represented in its external relations more firmly and worthily than Rome in its best times by its senate. In matters of internal administration it certainly cannot be concealed that the moneyed and landed aristocracy, which was especially represented in the senate, acted with partiality in affairs that bore upon its peculiar interests, and that the sagacity and energy of the body were often in such cases employed far from beneficially to the state. Nevertheless the great principle established amidst severe conflicts, that all Roman burgesses were equal in the eye of the law as respected rights and duties, and the opening up of a political career (or in other words, of admission to the senate) to every one, which was the result of that principle, concurred with the brilliance of military and political successes in preserving the harmony of the state and of the nation, and relieved the distinction of classes from that bitterness and malignity which marked the struggle of the patricians and plebeians. And, as the fortunate turn taken by external politics had the effect of giving the rich for more than a century ample space for themselves and rendered it unnecessary that they should oppress the middle class, the Roman people was enabled by means of its senate to carry out for a longer term than is usually granted to a people the grandest of all human undertakings - a wise and happy self-government.