在50年代，核灾难似乎是件很有可能发生的事。
A nuclear holocaust seemed a very real possibility in the '50s.
关于有效论点的一件很有意思的事，就像你们看到他们可能有错误的结论。
One of the interesting things about valid arguments as you'll see is that they can have false conclusion.
看到这篇文章中提到的所有“必读书目”的链接，可能会觉得有点太多了，但我可以在我驾车跑在城里的时候听他们的音频书啊，这确实是很有趣的事。
Looking at all the “required ” links in this article might seem a little overwhelming, but I was able to listen to them all on audio books while driving around town. It was actually fun.
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