"How come I never thought of that before."
With so much money, one didn't even know how to spend it. To ask Tang Zhinian how much money he had actually made, he himself didn't know, as he had never bothered to count. He just knew that with the money he earned, even spending it for several generations wouldn't deplete it.
In the past, he only thought of building bridges and paving roads for his hometown. It never occurred to him that many people suffer from sickness because they can't afford treatment and their conditions worsen needless because of it. Given that his daughter was a doctor, how could he be unaware of this? And weren't such instances plentiful?
Why not set up a fund? It would just cost some money, but it could save many lives. He might not be able to save everyone, but saving even one was worth it, and it would also be like leaving some merit for his son, smoothing the course of his life.