One of the characteristic features of a Roman magistracy was the right which an incumbent had to veto the action of a colleague; and the tribune had the right, which he freely exercised, to veto the action of any other official. In some respects the Romans used the veto power in a more practical way than we do. Our governors, presidents, and other chief executives may not interpose a veto until a measure has been adopted and laid before them for their signature. Often they are required to disapprove of long, important measures, which they would gladly see adopted, were it not for some slight defect. Under Roman practice a bill could be vetoed before action had been taken upon it, or a tribune would ask for a night’s delay before action should be taken. This arrangement gave proponents of a bill an opportunity to change the objectionable features of it. In recent years various timid excursions have been made into certain fields of political activity, in which Roman magistrates exercised their power freely. We try to influence the morals of people by exercising some supervision over the stage and over the public press; and in time of war the government has fixed the price of certain foods and attempted to provide for their proper distribution. What the censor’s office did in its palmy days to improve the morals of the people and to check extravagance and display has been discussed in the last chapter, and in the aedile’s office the Romans had a permanent Food Administration. We have already observed that the political quality of the Romans which made for progress and stability at the same time more than did any other, was their ability to adapt old institutions to new conditions. In the practice of assigning a board of experts to an official we have an illustration of the way in which this result was accomplished. Probably no people in antiquity used experts so freely, and perhaps in modern times the practice is not so general as it was in Rome. A magistrate was elected directly by the people each year. He was better aware of the trend of popular sentiment than the average prime minister. He could confidently be expected to advocate progress or change. Attached to his office was a _consilium_, or body of expert advisers, who were familiar with precedent and usage and who would hold fast to the _mos maiorum_. In all departments of Roman public life such boards of advisers are to be found. The king, and later the consul, had the Senate as his _consilium_. The praetor, and, under the empire, the emperor had their _consilia_ to assist them in the adjudication of cases, and in the field of the state religion the chief pontiff was advised by his board of pontiffs. The interaction of the forces which these two elements represented resulted in the gradual reform of old institutions, without too violent a break with law and tradition. We may regard the imperial bureaux which Hadrian brought to a state