The son wants to buy a pair of basketball shoes as his old ones look kind of funny. But the father thinks there is still a lot of life left in the old shoes. The son points out that in an ad Yao Ming claims that these shoes give him extra spring. The father, on the other hand, says that he does not make as much money as Yao Ming does, and that the tall man does not need extra spring. What's more, the advertiser may give him millions of dollars for wearing the shoes in the ad. To this the son answers jokingly that he would wear the new shoes for nothing. Then the father replies that Yao Ming didn't reach the top simply because of the shoes. Rather, there must be something else. The son knows his father means things like hard work and dedication. Finally, the father asks the son to focus/concentrate on his studies and forget about the shoes.