但是当人们在中风以后遇到语言听说困难——一种叫作失语症的毛病时，从难的级别开始，他们似乎进步得更快。
But when people have difficulty speaking and understanding language after a stroke-a condition called aphasia-they seem to improve faster when they start at a harder level.
这组人员更常见的辩解是，科研工作是如此的困难——取样大，分析难——以至于大多数成果最终得出的结论是错误的。
The group's more general argument is that scientific research is so difficult-the sample sizes must be big and the analysis rigorous-that most research may end up being wrong.
尽管你要独自去面对那些糟糕烦人的想法，那些永无休止的工作，困难难重重，把他们都跑之脑后吧。
Even though you're confronted with that horrible thought that you're alone, that you're working on a never-ending, Herculean task, push it to the back of your mind.
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