4. One beautiful phrase

 I'm sad to say, it's not the "one good sentence", because it is about three sentences. But it is a beautiful phrase. 

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The fact, is that, without a rule allowing free speech, there could be no long, slow, and even speechless work (sometimes speechless) toward great humanitarian goals. But, the fact is, also, that free speech is itself a long, slow work -- And, though the speechless work justifies the free speech, the free speech also justifies the long, slow, speechless work.