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.

El tiempo no es oro, el tiempo es vida.

教育是与海洋建立可持续关系的基础。

可持续性不仅仅是一个选择；它是我们业务未来的必要条件。

智慧的种子在静默中生长。