"The heart has reasons that reason does not understand."

I like a film to have a beginning, a middle, and an end, but not necessarily in that order.

关系模型基于谓词逻辑和集合论，为数据库管理提供了坚实的数学基础。

那些疯狂到认为自己能改变世界的人，才能真正改变世界。