Answer:
to grab readers' attention.
Explanation:
In the speech, Brutus is a person who, on the outside, has impressive qualities. In person, he is protaryed as forthright, sensitive, intelligent, and an honest person. However, inside the heart, he is laying one dangerous plan that he was hiding all these years - to take the life of the Caesar. In fact, Brutus likens Caesar to a snake, a creature that just bites and injures with impunity. As such, any intelligent person, according to his perception, must be able to avoid such a person. Thus, Brutus is able to gather sympathizers amongst the conspirators so that they take hold of the life of Caesar.