Final answer:
If Brutus and Cassius were defeated, Brutus would feel despondent about being subject to another tyranny, given the Roman cultural aversion to autocracy.
Step-by-step explanation:
If Brutus and Cassius lose the battle, Brutus would likely be apprehensive about being 'bound to Rome' under another tyrant. In examining the context of Rome during that period, we observe a society deeply troubled by the impacts of tyranny and autocracy. Famous political figures like Cicero lamented the erosion of the Roman Republic and the rise of such powerful figures like Caesar, reflecting the broader Roman aversion to autocratic rule. This sentiment was also mirrored in Shakespeare's portrayal of the Roman characters in his play 'Julius Caesar'.
In the historical accounts of Romans like Cicero and from the narratives of Shakespeare, we see a consistent portrayal of the importance of republicanism and the fear of tyranny. The assassination of Caesar by Brutus and Cassius was rooted in the defense of the Roman Republic against perceived tyranny. Losing the battle against the forces that support the tyranny could mean subjugation to an autocratic regime, representing the antithesis of the Roman ideal of liberty and governance by the Senate and the people.
Such feelings are echoed throughout Roman literature, such as the irony and criticism found in the satires of Juvenal or the accounts of Plutarch's stories of exile and battles for freedom. Romans prized their republican heritage and autonomy. Thus, for Brutus, the prospect of another tyrant dominating Rome would have been a grim reality, countering the very principles he ostensibly fought for when he joined the conspiracy to assassinate Caesar.