This combining of data and functions on that data is a very essence of object-oriented programming That's really what defines it.

数据与函数的结合,是面向对象编程的核心,这也就是它的定义。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now these ideas of classes, object-oriented programming, data abstraction, are about 40 years old, they're not new ideas.

面向对象编程的概念，数据抽象的概念，都是40年前就有的老东西了。

麻省理工公开课 - 计算机科学及编程导论课程节选