The Liskov Substitution Principle is a fundamental concept in object-oriented programming, stating that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.

最好的电影是那些让你思考、挑战你、在你离开电影院后仍久久留在你心中的电影。

We are all haunted by the ghosts of our own making.

表演不是要成为不同的人。它是在明显不同的事物中找到相似之处，然后在那里找到自己。

数学之美只会向更有耐心的追随者展现。

I don't do easy. I make things happen.

I think the only free man can feel this kind of excitement, a free man step on a long journey, towards the uncertain future.

未来的终极竞争将是用户体验的竞争。