A Doll's House
How we cite our quotes:
HELMER: "Bought, did you say? All these things? Has my little spendthrift been wasting money again?" (1.11)
Nora is constantly accused of wasting money when, in reality, she keeps barely anything for herself, all in an effort to pay back the loan that saved her husband's life.
HELMER: "Suppose, now, that I borrowed fifty pounds today, and you spent it all in the Christmas week, and then on New Year's Eve a slate fell on my head and killed me." (1.16)
Torvald is ever the pragmatist when it comes to financial matters.
HELMER: "There can be no freedom or beauty about a home life that depends on borrowing and debt." (1.21)
Torvald's absolute horror of debt is what forced Nora to deceive him in regards to the loan that saved his life.