Cato could find here no opportunity to show his zeal or exercise his valour, on account of the ill conduct of the general. However, amidst the corruption and disorders of that army, he showed such a love of discipline, so much bravery upon occasion, and so much courage and wisdom in everything, that it appeared he was in no way inferior to the old Cato. Gellius offered him great rewards, and would have decreed him the first honours; which, however, he refused, saying he had done nothing that deserved them. This made him be thought a man of strange and eccentric temper.
There was a law passed, moreover, that the candidates who stood for any office should not have prompters in their canvass, to tell them the names of the citizens; and Cato, when he sued to be elected tribune, was the only man that obeyed this law. He took great pains to learn by his own knowledge to salute those he had to speak with, and to call them by their names; yet even those who praised him for this, did not do so without some envy and jealousy, for the more they considered the excellence of what he did, the more they were grieved at the difficulty they found to do the like.
Being chosen tribune, he was sent into Macedon to join Rubrius, who was general there. It is said that his wife showing much concern, and weeping at his departure, Munatius, one of Cato's friends, said to her, "Do not trouble yourself, Atilia, I will engage to watch over him for you." "By all means," replied Cato; and when they had gone one day's journey together, "Now," said he to Munatius, after they had supped, "that you may be sure to keep your promise to Atilia, you must not leave me day nor night," and from that time, he ordered two beds to be made in his own chamber, that Munatius might lie there. And so he continued to do, Cato making it his jest to see that he was always there. There went with him fifteen slaves, two freedmen, and four of his friends; these rode on horseback, but Cato always went on foot, yet would he keep by them, and talk with each of them in turn as they went.
When he came to the army, which consisted of several legions, the general gave him the command of one; and as he looked upon it as a small matter, and not worthy a commander, to give evidence of his own signal valour, he resolved to make his soldiers, as far as he could, like himself, not, however, in this relaxing the terrors of his office, but associating reason with his authority. He persuaded and instructed every one in particular, and bestowed rewards or punishments according to desert; and at length his men were so well disciplined, that it was hard to say whether they were more peaceable or more warlike, more valiant or more just; they were alike formidable to their enemies their enemies and courteous to their allies, fearful to do wrong, and forward to gain honour. And Cato himself acquired in the fullest measure, what it had been his least desire to seek, glory and good repute; he was highly esteemed by all men, and entirely beloved by the soldiers. Whatever he commanded to be done, he himself took part in the performing; in his apparel, his diet, and mode of travelling, he was more like a common soldier than an officer; but in character, high purpose, and wisdom, he far exceeded all that had the names and titles of commanders, and he made himself, without knowing it, the object of general affection. For the true love of virtue is in all men produced by the love and respect they bear to him that teaches it; and those who praise good men, yet do not love them, may respect their reputation, but do not really admire, and will never imitate their virtue.
There dwelt at that time in Pergamus, Athenodorus, surnamed Cordylio, a man of high repute for his knowledge of the Stoic philosophy, who was now grown old, and had always steadily refused the friendship and acquaintance of princes and great men. Cato understood this; so that imagining he should not be able to prevail with him by sending or writing, and being by the laws allowed two months' absence from the army, he resolved to go into Asia to see him in person, trusting to his own good qualities not to lose his labour. And when he had conversed with him, and succeeded in persuading him out of his former resolutions, he returned and brought him to the camp as joyful and as proud of this victory as if he had done some heroic exploit, greater than any of those of Pompey or Lucullus, who with their armies at that time were subduing so many nations and kingdoms.