Of course, that doesn't mean that in the real world one of them does exist and the other one doesn't.

当然,这并不意味着,在现实世界里面其中一个存在,而另一个不存在

耶鲁公开课 - 死亡课程节选

So imagining a world in which Shelly exists but Kagan doesn't or Kagan exists but Shelly doesn't, that's trying to imagine a world in which I exist but I don't.

所以想象在一个世界里薛立存在,而卡根不存在或者卡根存在而薛立不存在,这就像是要想象在一个世界里,我存在而我不存在

耶鲁公开课 - 死亡课程节选

It's right opposite Constantinople-- that doesn't exist, Istanbul.

就在君士坦丁堡对面,现在我们叫它,伊斯坦布尔

耶鲁公开课 - 古希腊历史简介课程节选

We can't 'scrap' something that doesn't exist.

BBC: Beaver

For social commentators like Peter York -- author of the famous "Sloane Ranger Handbook" -- Wimbledon represents a type of Britishness that doesn't exist any more: one steeped in glorious Empire that is overwhelmingly white, affluent and still centered around London and the south east of England.

CNN: Game, set and match: What Wimbledon says about the British

Now when people talk about the U.N. they talk about something that doesn't exist.

WSJ: The Weekend Interview with Charles Hill: The Empire Strikes Back