The human heart, at whatever age, opens only to the heart that opens in return.

笑对人有益，只要不出人命就好。

过去是一个异国；他们在那里做事的方式不同。

Fishermen are our foundation, and their interests must come first.

The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.

数学中最深刻的见解往往来自最抽象的理论。