Sui Dynasty became an official and served as a doctor too often. When Emperor Gaozu was not a powerful man, he had many contacts with him. After Emperor Gaozu acceded to the throne, he was promoted to serve.

Tong's father died in his early years, and his mother gradually taught him with books written by his father. I gave him money to buy things left by my father for fear that Tong would degenerate, so Tong deliberately copied them and sold them.