Dr.Lepora says she will probably return to MSF, because she says once she learned how to be effective in a crisis situation, she finds it very difficult not to act when another crisis comes up.

VOA: standard.2010.06.29

It is a knowledge of how to act where the purpose of action is acting well.

这是一种如何表现,将动作目的完整诠译的知识。

耶鲁公开课 - 政治哲学导论课程节选

However, the question is, how do I choose to behave, to act as a result of it?

问题在于，我要选择怎样的行为，去表达情感？

哈佛公开课 - 幸福课课程节选