Plutarch, Cato the Younger
Bernadotte Perrin, Ed.

43. And now Caius Trebonius proposed a law for the assignment of provinces to the consuls, whereby one of them was to have Spain and Africa under him, the other Syria and Egypt, and both were to wage war on whom they pleased, and attack and subdue them with land and sea forces. The rest of the opposition were weary of their efforts to prevent such things, and forbore even to speak against the measure; but Cato mounted the rostra before the vote was taken, expressed a wish to speak, with difficulty gained permission, and spoke for two hours. [2] After he had consumed this time in long arguments, expositions, and prophecies, he was not allowed to speak any longer, but an official went up to him as he sought to continue, and pulled him down from the rostra. But even from where he stood below the rostra he kept shouting, and found men to listen to him and share his indignation. [3] So the official once more laid hands on him, led him away, and put him out of the forum. Then, the instant that he was released, he turned back and strove to reach the rostra, shouting, and commanding the citizens to help him. This was repeated several times, until Trebonius, in a passion, ordered him to be led to prison; but a crowd followed listening to what he said as he went along, so that Trebonius took fright and let him go.

[4] In this manner Cato consumed that day; but during the days that followed his adversaries intimidated some of the citizens, won over others by bribes and favours, with armed men prevented one of the tribunes, Aquillius, from leaving the senate-chamber, cast Cato himself out of the forum when he cried out that there had been thunder, and after a few of the citizens had been wounded and some actually slain, forced the passage of the law. Consequently, many banded together and wrathfully pelted the statues of Pompey. [5] But Cato came up and stopped this. However, when once more a law was introduced concerning Caesar's provinces and armies, Cato no longer addressed himself to the people, but to Pompey himself, solemnly assuring and warning him that he was now, without knowing it, taking Caesar upon his own shoulders, and that when he began to feel the burden and to be overcome by it, he would neither have the power to put it away nor the strength to bear it longer, and would therefore precipitate himself, burden and all, upon the city; [6] then he would call to mind the exhortations of Cato, and see that they had sought no less the interests of Pompey than honour and justice. Pompey heard these counsels repeatedly, but ignored and put them by; he did not believe that Caesar would change, because he trusted in his own good fortune and power.