First of all Brutus knew that his father had done so many immoral acts towards the society. His father sleeps with senator's wife. He knew that his father killed and impale prisoners without any mercy. He knew that his father was trying to gain full superior power and thus to stop this issue from getting worse was to kill his father.
Moreover, Brutus had no intention of seeking high power. This can be seen where he consider on the other senators in the Roman society. Due to Caesar's dictatorship, most of Roman senators had no grip of power thus he had to give way so that an Roman power can be given equally among these senators.
Furthermore, even if Brutus didn't killed his father and took over the throne, he fear that he will be a tyrant just like his father because of the power and superiority he possess. Thus his feebleness thought lead to his noble motives that was to murder his own father.
In conclusion the killings of Julius Caesar by Brutus is a noble motive. However Brutus's noble motives leads to conspiracy and it opens a gateway for many greedy and cunning Roman senators to take over Julius Caesar's throne and thus leads to civil war among the Romans and Brutus own death.
Moreover, Brutus had no intention of seeking high power. This can be seen where he consider on the other senators in the Roman society. Due to Caesar's dictatorship, most of Roman senators had no grip of power thus he had to give way so that an Roman power can be given equally among these senators.
In conclusion the killings of Julius Caesar by Brutus is a noble motive. However Brutus's noble motives leads to conspiracy and it opens a gateway for many greedy and cunning Roman senators to take over Julius Caesar's throne and thus leads to civil war among the Romans and Brutus own death.