One of my favorite stories is, William Ruckelshaus, William Ruckelshaus who was head of the Environmental Protection Agency in the early 1970s.

我最喜欢的一个故事，是讲,他是20世纪70年代时候的,环境保护机构的会长。

麻省理工公开课 - 计算机科学及编程导论课程节选

Why not think about creating positive situations ? that will help us lead happier, more moral lives?

为什么不创造积极的环境,让我们获得更快乐更讲道德的生活？

哈佛公开课 - 幸福课课程节选

itself and introduce Scratch, the programming language in an environment we looked at, but also some of the fundamentals that we'll lace throughout the course.

这周五我们就开始讲计算机科学，并在我们设定的环境下,介绍编程语言Scratch的用法，而且我们也会在课程中,捎带讲一些基础知识。

哈佛公开课 - 计算机科学课程节选