"Beware the ides of March." (I:ii:ln 18) From early on Caesar had been warned about his fate on the ides of March. He didn't listen because it was only a soothsayer. He should've listened because this isn't the only time he was warned of his death.
Act IV: Sc i
"Yet Caesar shall go forth; for these predictions are to the world in general as to Caesar."(II:ii:ln 28-29) Calpurnia tried to make Caesar stay home and at one point he was going to. Brutus comes over and tells him he has nothing to fear. No one is going to hurt him and he needs to go work at the capitol today
Act V: Sc iii
"Did this in Caesar seem ambitious? When that the poor have cried, Caesar had wept.(III:ii:ln 91-92) Antony gives his funeral orations. Convinces everyone that Caesar shouldn't have been killed. Sends everyone into a sense of chaos. Declares war on the conspiritors.
Theme: Fate vs. Free Will Act I: Sc 2
"These many then shall die; their names are pricked."(IV:i:ln 1) Antony, Octavius, and Lepidus make a list of who they need to kill. On that list is Lepidus's brother and Antony's nephew. These men are no more to blame for useless death than Brutus and Cassius.
"Titinius is enclosed around about with horsemen that make to him on the spur." (V:iii:ln 27-28) After Pindorus reported the false news Cassius killed himself. Titinius wasn't actually dead. It was Brutus's army who was there and gave Titinius a leaf crown to show that they won.
"Men at some time are masters of their fates: The fault, dear Brutus, is not in our stars, but in ourselves, that we are underlings." (I:ii:ln 139-141) An example of the theme, Fate vs. Free Will, is when Cassius and Brutus take matters into their own hands and kill Caesar just because they were scared of what he might do if he got the power. Caesar had no free will to his future.