Watching others speed away in a cloud of dust, you couldn't help saying to Du Xishan in the passenger seat, "Tell me, Lao Du, as a professor at Jiangzhe University with a six-figure annual income, you aren't embarrassed to be driving such a clunker?"
"You don't understand, this is called nostalgia."
"Yes, bad nostalgia—both bad and old." You laughed and shook your head, then added, "Hey, who's that fat guy?"
"He and I have been friends since childhood, and we were also college classmates. Oh, that's right, he's a professor at Eastern Sea University."
"Both professors, yet why is there such a big disparity?"
"Quit yapping. Didn't you also get quite a bit out of this trip?"
"A lousy stone, what sort of gain is that." As you said this, you once again opened the rosewood box, took out the stone, and when you looked at the black stone in the sunlight, you saw what appeared to be text inside!