If you are brave to say 'good bye', life will reward you with a new 'hello'.

Art doesn’t have to be serious to be meaningful.

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.

我从来不是一个说"我想成为榜样"的人。但后来你意识到你是榜样，就必须注意自己的言行。

The world might be mean, but people don't have to be.

爱是一种冒险，但值得一试。