“I could have been him!”
Context: Mickey's anguished final cry when he learns Edward is his twin moments before the shooting.
Analysis
The conditional "could have been" crystallises the play's central argument: only the accident of which mother kept him separated Mickey's ruin from Edward's privilege. The exclamation conveys overwhelming injustice and despair. Russell makes Mickey voice the nature-vs-nurture thesis at the very moment it kills him.
Language Techniques:
Exam Tip
The single most important quote for nature vs nurture and class. Use to argue that environment, not character, divided the twins' fates.