What does the first sentence mean?
The Carthaginian senate, on the other hand, was based on a jealous control of administration by the government, and represented exclusively the leading families; its essence was mistrust of all above and below it, and therefore it could neither be confident that the people would follow whither it led, nor free from the dread of usurpations on the part of the magistrates. Hence the steady course of Roman policy, which never receded a step in times of misfortune, and never threw away the favours of fortune by negligence or indifference; whereas the Carthaginians desisted from the struggle when a last effort might perhaps have saved all, and, weary or forgetful of their great national duties, allowed the half-completed building to fall to pieces, only to begin it in a few years anew. Hence the capable magistrate in Rome was ordinarily on a good understanding with his government;in Carthage he was frequently at decided feud with his masters at home, and was forced to resist them by unconstitutional means and to make common cause with the opposing party of reform.(followed)Does it mean that Carthaginian senate is supported by a government which is so jealous that it does not allow the others to control the administration