The greatest theorems often start as simple conjectures, born out of intuition.

人变得真正低劣时，除了高兴别人的不幸外，已无其他乐趣可言。

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.

每一部小说都是举向社会的一面镜子，映照出它的美与缺陷。

我们必须以与面对面治疗相同的严谨和同情心设计数字工具。