The most important property of a program is whether it accomplishes the intention of its user.
我经常锻炼。只是昨天我是在床上吃的早饭。
The function of entrepreneurs is to reform or revolutionize the pattern of production by exploiting an invention or, more generally, an untried technological possibility for producing a new commodity or producing an old one in a new way.
"Books are the bridges between generations."