Humphrey Yang explains an ancient Chinese money management technique called the "Four Column Accounting Method," which he has practiced since childhood. He discusses why Chinese culture often emphasizes saving, attributing it to Confucian values, family dynamics, and the prioritization of education. The video details how to implement the Four Column Method for tracking income and expenses to improve savings, and concludes with three behavioral principles from Chinese culture that can aid in wealth building: avoiding ostentatious displays of wealth, living on a smaller portion of income, and practicing value-based spending.