未来属于那些拥抱变化并推动转型的人。

View the world with the eyes of wisdom.

The most important political distinction among countries concerns not their form of government but their degree of government.

The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.

成功建立在信任、诚信和不懈努力之上。

You can learn more about a man in an hour of play, than in a year of conversation.

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。