"I think people really like to be challenged when they go to the cinema and you watch it and you want to go back again and take more from it."

VOA: standard.2010.07.16

Well recall from week zero when we took a very real world phonebook and then just last week we had our volunteer come up with the array of pieces of paper on the board and when I challenged myself and when I challenged our volunteer to find me the number 50 both he and I were able 50 to leverage one assumption.

大家回忆一下,当我们拿着一个现实世界的电话簿,就在上周我们的志愿者,在黑板上提出了纸片的阵列,我挑战自己，也挑战志愿者,要找出同一个,数字。

哈佛公开课 - 计算机科学课程节选

I actually came to UCLA as a Psychology major, but I wasn't being challenged,

其实我刚上UCLA的时候主修心理学，但是觉得没挑战，

什么是认知科学？ - SpeakingMax英语口语达人

These results are surprising and disturbing and I said there is work to be done at an individual and group level and this young man challenged me to be more explicit about that.

这些结果都出乎意料，而且让人不安,我说过个人和群体都要下功夫,这位同学要我明确地说怎样下功夫。

耶鲁公开课 - 心理学导论课程节选

So the question for us remains, which deeply challenged readers in Hobbes' own time, what makes Hobbes' story, as I am calling it, his story about the state of nature ? being a condition of war, what makes it plausible?

所以我们的问题依然存在，这使霍布斯时代的读者感到深深的挑战，是什么使得霍布斯的故事，关于自然状态的故事,战争状态的故事，是什么使它真实合理？

耶鲁公开课 - 政治哲学导论课程节选