现在如果送给别人很少的东西，却希望人家回报很多的东西，那么，人们就会怕你再送东西给自己了。 

我非常相信“各有所好”。

But the old man thought only of his steering and his great tiredness. He had gone out too far and the sharks had beaten him. He knew they would leave him nothing but the stripped skeleton of his great catch.

Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.

企业家总是在寻找变化，对其作出反应，并将其视为机遇加以利用。

Scale does not equal value, precision is the key.