The Liskov Substitution Principle is a fundamental concept in object-oriented programming, ensuring that derived classes can be used in place of their base classes without altering the correctness of the program.

站在一旁与完全参与之间的张力；这就是造就作家的原因。

The best traders are those who can stay disciplined in the face of uncertainty.

世界是一本书，不旅行的人只读了一页。

我对现实和梦想之间的空间感兴趣。