Why does Brutus disagree about taking an oath?
Brutus did not prefer to take an oath because according to him if the suffering that can be seen on the faces of people, the suffering they themselves were feeling and the corruption (of power) of the times were insufficient motives, then they should stop it all at once and go to bed and sleep like idle men do: and by doing so allow the tyrranical rule to prevail over them. These causes were enough to make each man devoted to do the task, so they needn’t take the oath, but stick to these causes and be faithful in their task which they had to commit. According to Brutus, no other motivation but their own complaints about the state of affairs was enough to urge them to put it right and he believed that those were the men who will never deceive once they have given their word. So, what other binding agreement did they need than Roman citizenswho can keep secrets and what other vow did they need than an honest man committed to another honest man on the understanding that he will either do