Arthur Miller created Willy Loman with many flaws. He has deep-seated insecurities, compromised morals, and reversed priorities.
Willy's insecurities stem from being abandoned by his father at a young age. He admits in an imagined conversation with Ben that he has always felt he was "temporary." His constant turning to the specter of Ben for validation shows his insecurity. Because he fears failure so much, he often lies to Linda about his earnings. Biff remarks that Willy "didn't know who he was."
Some of Willy's moral failings are lying, theft, adultery, and misplaced anger. Biff states, "We never told the truth for ten minutes in this house," and viewers note that Willy often reverses his statements within a matter of a few lines. When Willy builds the stoop on their home, he does so with lumber stolen from a nearby construction site. He knows of Biff's stealing basketballs in high school from his employer and does not reprimand Biff, but encourages such behavior. His insecurities...
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