All right, pal, all right. It’s all settled now. I’ve been remiss. I know that, Mom. But now I’ll stay, and I swear to you, I’ll apply myself. (Kneeling in front of her, in a fever of self-reproach.) It’s just – you see, Mom, I don’t fit in business. Not that I won’t try. I’ll try, and I’ll make good.
– Arthur Miller
Death of a Salesman, Act 1. Biff admits to being the neglectful son, after Linda chides him and his brother for not helping more with their father. Biff promises to reform and and stay in New York city and find a job. But when he warns "I don’t fit into business," we know that he will have difficulty fitting into Willy’s expectations for him to follow his father into the world of business and sales. This is foreshadowed here.