And I think many parents believe that if they didn't persist in using these things their children would never learn to speak.

我相信很多父母认为,如果他们不坚持使用这些东西,他们的孩子将永远也学不会说话

耶鲁公开课 - 心理学导论课程节选

We're not using them to weed you out, we're using them to help you learn.

我们不会用他们来淘汰你们，而是用他们来帮助你们学习。

麻省理工公开课 - 计算机科学及编程导论课程节选