請將下面這段話翻譯成英文：

　　一個人的生命究竟有多大意義，這有什么標(biāo)準(zhǔn)可以衡量嗎?提出一個絕對的標(biāo)準(zhǔn)當(dāng)然很困難;但是，大體上看一個人對待生命的態(tài)度是否嚴(yán)肅認(rèn)真，看他對待勞動、工作等等的態(tài)度如何，也就不難對這個人的存在意義做出適當(dāng)?shù)墓烙嬃�。古來一切有成就的人，都很�?yán)肅地對待自己的生命，當(dāng)他活著一天，總要盡量多勞動、多工作、多學(xué)習(xí)、不肯虛度年華，不讓時間白白地浪費掉。我國歷代的勞動人民以及大政治家、大思想家等等都莫不如此。

　　參考翻譯

　　Is there a standard to evaluate the significance of one's life?It's certainly difficult to offer a definite standard.But generally speaking,we can tell it by judging his attitude towards life and work,making clear whether he is serious about his life.

　　Throughout the history,the outstanding people were all very serious about their lives.They made best use of every minute of their lives to work and study as much as possible,never wasting their time.None of the working people and the great statesmen and their thinkers were of exception.