当市场下跌时，你轻易的将好东西打折变卖，但是一旦市场向上，再想买回来，难之又难。
You can always juice sales by going down-market, but it's hard to go back upmarket.
释义：天之险在于高不可升，地之险在于山川丘陵。王公设险以保卫国家，险的功用非常大。
The story of women’s progress in the labor market is also a story of unfinished revolutions.
开玩笑是件严肃的事情。
儿童应该得到成人的爱，而不是成人忙于生活所残余的爱。