What is the basis of antonys claim that brutus is the noblest romana of them all?

Mark Antony claims that Brutus is "the noblest Roman of them all" in his eulogy for Julius Caesar, highlighting Brutus's motives for participating in the assassination. Antony argues that while other conspirators acted out of jealousy or ambition, Brutus genuinely believed he was acting for the good of Rome. This portrayal emphasizes Brutus's integrity and moral character, despite the tragic consequences of his actions. Ultimately, Antony's statement serves to underscore the complexity of Brutus's character and the tragic nature of the political conflict.