As Lincoln got on the train that would take him to Washington, he said: "I now leave, not knowing when -- or whether ever I may return.

VOA: special.2009.07.23

Important lesson, so that there would be some predictability in the results and I would have some, if you will, smoke test for knowing whether or not I was getting, my code seemed to be working.

这很重要，因为这样我就可以预测,结果会是多少了，如果你愿意，我们可以做烟气试验,来看我的代码是否工作正常。

麻省理工公开课 - 计算机科学及编程导论课程节选

So it's not just knowing what genes or figuring out ways to look at gene expression, it's figuring out how this expression of key genes affects the fate of the individual.

所以我们不仅仅是要了解那些基因能致病,也不仅是要弄明白基因的表达方式,更要搞清楚这种关键基因的表达,如何影响个人命运

耶鲁公开课 - 生物医学工程探索课程节选

"When I was talking about knowing if my business is viable or not, through a profit-and-loss model, I was like 'Wow,I didn't even know the word viable before, and now I do.'

VOA: special.2011.06.30

There it wouldn't be possible to invoke an intention because the whole complication of Derrida is precisely to raise the question about not knowing, not being able to voice the differance between difference and differance and not knowing whether Archie is right or whether Edith is right.

这里它不可能引起一个意图,以为德里达的复杂之处恰恰在于,提出一类问题，有关不知道的，说不出来的,像是区别和延异之间的差别,也不知道阿齐和依迪斯谁对谁错。

耶鲁公开课 - 文学理论导论课程节选