How do moral dilemmas in act 5, scene 3, contribute to meaning in Julius Caesar?

In Act 5, Scene 3, Cassius reacts to what he thinks is a defeat by ordering Pindarus to kill him, then learns he misread the situation. Brutus later refuses to surrender and chooses death after the battle is lost. Their rigid, rash responses to difficult choices lead to tragic consequences, supporting the idea that inflexibility can result in dire situations.

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