One has to know what one is doing.

你得知道你在干什么。

youdao

To abandon what one is doing or planning to do.

放弃某人正在做的或打算做的。

youdao

Without exerting oneself, one could never expect to achieve success in no matter what one is doing.

没有发挥自己，没有人能指望取得成功，无论你在干什么。

youdao

"It should be clear understandable what they are doing, why they are doing it, and what all their decisions are based on.This is one.

VOA: standard.2010.04.15

It's always worth asking yourself what a line of poetry that is as aggressively unpleasant as this one is doing in a poem.

你需要不断的问自己，一句让人感到被侵犯，不悦的诗,正如这里的这句，到底想要表达什么。

耶鲁公开课 - 弥尔顿课程节选

The thought experiment, you recall, was one in which I imagine, I tell myself a story in which what I'm doing is I'm imagining my mind existing without my body.

回忆一下 那个思想实验,在其中我想象,我给自己讲了一个故事,在这个故事里,我只是想象我的心灵独立于我的身体存在

耶鲁公开课 - 死亡课程节选

The other two are growing overconfident and overthinking one's importance to what one is doing.

FORBES: Leadership

What they say they want to do is one thing, but what we see them doing every weekend is different.

CNN: Argentine soccer hooligans offered World Cup vacation

So what one would do today if one was rebalancing is exactly the opposite of what people are doing.

FORBES: Intelligent Investing Briefing Book