Immediately after assassinating Caesar, as chaos erupts in the Senate, Brutus speaks to those present who have witnessed the murder. He tells them to not be afraid and to not run away. "Ambition's debt is paid," he says, explaining the horrible and shocking event that has just taken place. He then seeks and finds Publius, an elderly senator, in the chamber, to give him a personal reassurance:
Publius, good cheer.
There is no harm intended to your person,
Nor to no Roman else. So tell them, Publius.
Cassius then tells Publius to leave the presence of the conspirators so that he might not be injured by "the people / Rushing on us . . . ." Brutus agrees. He wants no one who is not involved to suffer for what he and the others have done that day.