Mo Yan didn't understand how to pick them, so after listening to Lizhong's praise of the two oxen, he let him decide.
When Lizhong heard this, he started to haggle with the cattle trader, "Young brother, I can see you are an honest person, but fifteen taels for one head is too expensive. I think ten taels is about right."
"Big brother, these two oxen are the best in my house. Otherwise, you wouldn't have taken a liking to them at first glance, right? Fifteen taels for one head really isn't expensive. If you don't believe me, go ask around at other places, you definitely won't find a cheaper price."
Seeing that these two wanted to buy both oxen, the cattle trader was overjoyed, but at ten taels a head, he wouldn't make much profit.
Lizhong knew that pushing for ten taels was a bit harsh, but two oxen certainly weren't worth thirty taels. He couldn't let Mo Yan be the one getting a bad deal.