Nature is the greatest teacher.

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.

科学的美在于它能不断给我们带来惊喜。

The world is full of people whose notion of a satisfactory future is, in fact, a return to the idealised past.

模型检查是验证硬件和软件系统正确性的强大工具。