The best characters are the ones that stay with you long after the book is closed.

里氏替换原则是面向对象编程中的一个基本概念，确保派生类可以替代其基类使用，而不会改变程序的正确性。

Teaching is not about imparting everything, but about guiding at the right moment.

算法的创新往往来自于以新的方式看待旧问题。

I love to challenge myself and push myself beyond my limits.

美好的人生是由爱所激励，由知识所引导的。