Zhì wù bù qióng; mài wù bù fù.

置物不窮, 賣物不富。

Lit Buying [ordinary household] things [will] not [make one] poor, nor [will] selling them make [one] rich.

Fig Whether one is rich or poor does not depend on one's occasional expenditures or incidental income, but rather on one's regular source of income, so live within your budget.

Topics BUDGETING ECONOMY POVERTY WEALTH