The personalities of Brutus and Cassius differ significantly, which causes them to have a corrupt relationship. Brutus is an honest, truthful man. He is also shown to be naïve when he allows Antony to speak at Caesar’s funeral. He has a passion for the prosperity of Rome, and believes that Caesar will not be a fit ruler. He debates joining the conspiracy, but doesn’t want to murder Caesar. Cassius is a deceiving, selfish man. He knows that the conspirators need Brutus to be successful, so he sends him anonymous letters. Brutus receives the letters and decides to join the conspirators in the murdering of Caesar.
Brutus and Cassius are both part of the conspiracy, but their motives are quite different. Brutus truly believes that Caesar’s death is necessary to the success of Rome. If he is not killed, Brutus fears that he will be crowned king and Rome will no longer be a democracy. Cassius’ motives are not for the good of Rome, but instead, they are very selfish. Cassius hates Caesar, and is very power-thirsty. He worries that the conspiracy will be defeated by Mark Antony, and suggests that they kill him too. Brutus resists, saying, “Let’s be sacrificers, but not butchers” (Act II Scene I line 167).
Because of their differences, Brutus and Cassius rarely agree on matters. They argue constantly, and both have strong opinions. Cassius is furious at Brutus for publicly disgracing a friend of his for taking bribes from the Sardinians. Brutus is equally furious that Cassius would defend someone who takes bribes, arguing that Caesar was killed for that exact behavior. As the upcoming battle puts stress on the two men, they grow farther and farther apart. Before the battle, the two men are able to put their differences behind themselves and forgive each other. After struggling for so long to get along, their relationship is left in good terms. Cassius says a final goodbye to Brutus in Act V Scene I lines 119-121, by stating,