穷人面临的约束往往是政策制定者看不到的。
我是另一个。如果铜醒来变成号角,那不是它的错。
The worse a situation becomes, the less it takes to turn it around, the bigger the upside.
Innovation in science often comes from looking at old problems in new ways.
The customer may not always be right, but they are always the customer.