It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.

数学中最重要的是提出正确的问题。

Un buen escritor es aquel que logra conectar con el alma del lector.

君子勇于改正错误，小人则文过饰非。

Let us try to teach generosity and altruism, because we are born selfish.

释义：人的行为必须与自然规律相协调，才能取得成功。这句话强调人与自然的和谐关系。

International politics is a brutal and unforgiving arena, where states constantly strive to maximize their power and security.

怀疑是受过教育的头脑的标志，甚至是姿态。