量子力学的教训是，我们必须修正我们对现实的经典观念。

I try to create buildings that are like chameleons, changing with their surroundings.

In the world of databases, performance is king. But performance without reliability is meaningless.

Free education is abundant, all over the Internet. It's the desire to learn that's scarce.

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.