The soothsayer tells Caesar to beware of the ides of March. This foreshadows what's to come. Caesar, being his cocky self, blows it off. He is fazed by nothing, and he feels he's impenetrable. "Caesar!... Beware of the ides of March." -Soothsayer
Act IV: Scene i
Brutus and Cassius come up with the plan to eliminate Caesar. They want to do this for Rome's benefit. They believe that Caesar's ego is toxic. They are doing it for honor. "Let's kill him boldly, but not wrathfully." -Brutus
Act V: Scene v
Farewell, good Strato.
Caesar is killed by the conspirators. This group consists of Brutus, Cassius, Casca, Cinna, Trebonius, and Metellus. They complete this act by stabbing him. This act takes place outside the capitol. Casca: "Speak hands for me!" [They stab Caesar] Caesar: "Et tu, Brute? Then fall, Caesar." [Dies]
Antony, Octavius, and Lepidus vow revenge for the death of Caesar. They come up with the list of people to kill. This here starts a war. This is more an egotistical act for Antony, but that's besides the point. "These many then shall die; their names are pricked." -Antony
Brutus kills himself, for the good of Rome. Strato assists in this act. This here proves how noble Brutus is. Even Antony called Brutus the most noble of them all. "Farewell, good Strato - Caesar, now be still; I klled not thee with half so good a will." -Brutus
Don't let your ego get the best of you. The whole story is kicked off because of Caesar's huge ego. His ego is toxic for Rome. If he wasn't so egotistical, this would've been a very simple story. Caesar probably would've been king. "Speak; Caesar is turned to hear." -Caesar Caesar often refers to himself in the third person. This is a very cocky thing to do.