Die Mathematik ist die Wissenschaft von den Beziehungen zwischen den Begriffen, unabhängig von deren Inhalt.
数学是关于概念之间关系的科学，与这些概念的内容无关。
Technological innovation is the fundamental driving force for enterprise development, without innovation there is no future.
I'm grateful for every moment, good or bad.
I never really thought about being a director. I just wanted to be an actor.
我不害怕失败，我害怕不去尝试。