Read the excerpt from act 4, scene 3, of The Tragedy of Julius Caesar . CASSIUS: Hath Cassius lived To be but mirth and laughter to his Brutus When grief and blood ill-tempered vexeth him? BRUTUS: When I spoke that, I was ill-tempered too. CASSIUS: Do you confess so much? Give me your hand. BRUTUS: And my heart too. CASSIUS: O Brutus! BRUTUS: What’s the matter? CASSIUS: Have not you love enough to bear with me When that rash humour which my mother gave me Makes me forgetful? BRUTUS: Yes, Cassius, and from henceforth, When you are over-earnest with your Brutus, He’ll think your mother chides, and leave you so. How does the characterization in this passage connect to its central idea?