Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
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.
我相信简单的生活，有纪律的生活，专注的生活。
时间是最好的作者：它总能找到一个完美的结局。
You have to be willing to fail in order to succeed.