The soothsayer warns Caesar about the ides of March. Caesar ignores him and will later pay for it. "Beware the ides of March./ What man is that?/ A soothsayer bids you beware the ides of March." (I:ii:ln 18-20).
Act IV: Scene III
Thou shalt see me at Philippi.
All the conspirators meet up to see who all is part of their group. They make a plan. They also decide who all they will kill. "Shall no man else be touched but only Caesar?" (II:i:ln 154).
Act V: Scene V
The conspirators show up at Caesar's house on the ides of March. They all 6 stab him multiple times. "Speak hands for me!/ Et tu, Brute? Then fall, Caesar./Liberty Freedom! Tyranny is dead!/ Run hence proclaim, cry it about the streets." (III:i:ln 78-81).
I love Rome more.
Caesar's ghost visits Brutus. It tells Brutus that he will see him at Philippi. "Thy evil spirit, Brutus./ Why com'st thou?/ To tell thee thou shalt see me at Philippi." (IV:iii:ln 281-283).
Brutus kills himself on the field of battle. After he does when Antony finds him, he calls him the most noble Roman of them all. "This was the noblest Roman of them all." (V:V:ln 68).
Friendship is a major part of the play. Brutus is friends with Caesar but ends up killing him anyways. Brutus says that he loves Caesar but he loves Rome more. (Not/ That I loved Caesar less, but that I loved Rome more." (III:ii:ln 21-22).