_Love of Rome and republic_
- Like many Roman aristocrats, Brutus believed that the Roman Republic was the best form of government and feared that Caesar's growing power would lead to the end of the republic and the establishment of a dictatorship.
- Brutus was a man of noble birth with ancestors who had served the Republic with distinction, and he felt that Caesar was a threat to the traditional values and institutions of Rome.
_Personal motivations_
- Brutus had been a close friend and ally of Caesar, but he felt betrayed by Caesar's actions and felt that he had no choice but to act to protect the Republic.
- Brutsu was also concerned that Caesar's assassination would lead to civil war, but he believed that it was a necessary sacrifice to preserve the Republic.
_Influence of others_
- Brutus was persuaded by other conspirators, such as Gaius Cassius Longinus and Decimus Brutus, to join the plot to assassinate. These conspirators played on Brutus's sense of duty and convinced him that it was his responsibility to act against Caesar.
_Stoic philosophy_
- Brutus was a follower of Stoicism, a philosophy that emphasized duty and self-sacrifice, which may also have influenced his decision to join the conspiracy.
In the end, Brutus made a difficult choice to participate in the conspiracy against Caesar based on a combination of his love of Rome, personal motivations, the influence of others, and his philosophical beliefs.