求翻译：人最宝贵的是生命。生命对人来说只有一次。人的一生应当这样度过∶当回忆往事的时候，他不会因为虚度年华而悔恨，也不会因为碌碌无为而羞愧；在临死的时候，他能够说：“我的整个生命和全部精力，都已献给了世界上最壮丽的事业是什么意思？

Human life is the most valuable. Life to man only one. People should spend his life: when memories of past events when, he would not be wasting and remorse, will not be ashamed because of shiftless; at the time of death, he was able to say: "my whole life and all have been dedicated to the cause--of the world's most magnificent struggle for the liberation of man. ”