The goal of these exercises is to practice, so when a real emergency hits these crews will be prepared.

VOA: standard.2010.03.30

by asking, which of them are so valuable you'd be prepared to do them even if they would introduce what isn't otherwise there, ? namely, the risk of death?

通过问自己，什么事如此有价值,以至于你准备好要去做,即便它们会带来如果不去做就不会有的，也就是，死亡的风险？

耶鲁公开课 - 死亡课程节选