Under the green willow, he got to know him until they promised to live together. He taught him worldly principles and perseverance; he taught him how to deal with things and the warmth of the world. The love was deep, but it was no match for the changes in the world. He separated from him for seven years, determined to be a benevolent doctor who could save the world from suffering, and studied everywhere. Seven years later, they met again and talked about the pain of missing each other over wine. He asked him: "Why did you support my decision without hesitation, sir?" He seemed to be drunk, half-squinting his eyes, and sighed with a smile: "I knew back then that you had ambitions from all directions, and I would not be able to keep you, so I decided..." ++++++++++++++++++ "I have been looking forward to your return for seven years."