Warren Buffett posed a thought-provoking mental exercise to students at Teri Business School.

Imagine I give you a condition: you can choose one classmate, and then you can take ten percent of all their future income. How would you choose?

The deeper meaning behind Buffett's question is—when you seriously consider "who to choose," the criteria that come to mind are exactly the qualities that a successful person should possess.

This mental model may seem to discuss wealth distribution, but essentially it asks: what determines a person's future income ceiling? Is it IQ? Luck? Or something else?

You will find that the real reasons for choosing to invest in someone are often not their momentary performance, but their underlying thinking patterns, execution ability, learning capacity, and character resilience. These factors determine how far a person can go.

This is Benjamin Franklin-style thinking—through specific hypothetical scenarios, allowing you to intuitively understand the essence of wealth: it is not created out of thin air, but the result of a person continuously making the right decisions.