Epicureanism does not require the belief of a god nor does it believe in an after life, an aversion from common Roman philosophies who believed in fate, and gods. Cassius also did not believe in omens and fate until Act V, while nearing the battle at Phillipi. Cassius believes that the actions of birds he sees on the way to Phillipi are omens and tells a friend that he is starting to believe in fate. His invalidation of previous principles that he once held so strong have been starting to deteriorate. This complete change in belief is human tendency when dealing with failure or death. It is easier and more satisfying to believe that fate has lead you to failure rather than yourself; blaming your mistakes on others is easier than holding yourself responsible. Caesar, the pompous ruler of Rome, changes his beliefs when nearing death also.
Caesar thinks he is almost god-like and just as powerful. However, it is said by Cassius that Caesar, is superstitious grown of late'(II.i.195). He also succumbs to his wife's entreaty to stay home because she suspects he will die. However, Caesar, like Cassius eventually dies, despite recent feelings of superstition. Nevertheless, Caesar does show that he has veered from his usual