因此，努力工作顽强拼搏是必须的，但是如果得不到期待的结果，这些态度全是徒劳。
Thus, it is useful to work hard and be tough, but these attitudes become thoroughly useless if your actions don't bring you your desired results.
当我育有两个小孩，还应付着一份严肃吃力的工作时，我也竭力调和矛盾，但是我常常只能在一天结束的时候徒劳地祈祷：“上帝啊！”请再给我一个小时吧！
When I had two small children and a demanding job, I tried valiantly but often found myself at the end of the day praying in vain: "Dear God, just one more hour, please."
卫生工作及其严格地教育我们，正象没有行动的知识是浪费资源一样，没有知识的行动是徒劳无功的。
Health work teaches us with great rigour that action without knowledge is wasted effort, just as knowledge without action is a wasted resource.
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