Spite, spite, is the word of your undoing! And when you’re down and out, remember what did it. When you’re rotting somewhere beside the railroad tracks, remember, and don’t you dare blame it on me!

– Arthur Miller

Death of a Salesman, Act 2. Willy believes that Biff is punishing him because of the affair he had with a woman in Boston. He sees his son’s rejection as a betrayal of the ambitions he had for Biff. That of course is not true. Willy is being unrealistic by pushing Biff to achieve his own failed dreams of making his fortune in business. His son is rebelling against his father’s obsessive pursuit of material wealth and success, because he doesn’t believe it will bring him happiness.