Cato the Younger (16.3-16.4)

Now, however, Cato applied himself with energy to the business, not having merely the name and honour of a superior official, but also intelligence and rational judgement. He thought it best to treat the clerks as assistants, which they really were, sometimes convicting them of their evil practices, and sometimes teaching them if they erred from inexperience. But they were bold fellows, and tried to ingratiate themselves with the other quaestors, while they waged war upon Cato. Therefore the chief among them, whom he found guilty of a breach of trust in the matter of an inheritance, was expelled from the treasury by him, and a second was brought to trial for fraud.

This person Catulus Lutatius the censor came forward to defend, a man who had great authority from his office, but most of all from his virtue, being thought to surpass all Romans in justice and discretion; he also commended Cato’s way of living and was intimate with him. Accordingly, when Catulus had lost his case on its merits and began to beg openly for the acquittal of his client, Cato tried to stop him from doing this.