有这样一个小故事:三个工人在砌一堵墙。有人过来问他们:“你们在干什么”Thereisastorylikethis:Threeworkersarebuildingawall.Apersoncomestoask"whatareyoudoing?"第一个人抬头苦笑着说:”没看见吗?砌墙!我正在搬运着那些重得要命的石块呢。这可真是累人啊Thefirstmanraiseshisheadandsayswithforcedsmile,"don'tyouseeit?Buildingwall!Wearecarryingthoseheavystones,butit'sreallyhard"第二个人抬头苦笑着说:“我们在盖一栋高楼。不过这份工作可真是不轻松啊Thesecondmanraiseshisheadandsayswithforcedsmile,"wearebuildingatallbuilding.Buttheworkisreallynoteasy"第三个人满面笑容开心地说”我们正在建设一座新城市。我们现在所盖的这幢大楼未来将成为城市的标致性建筑之一啊!想想能够参与这样一个工程,真是令人兴奋。”Thethirdmansmilesandsayshappily,"Wearebuildinganewcity,Thebulidingwearebuildingnowwillbeoneofthesymbolbuildingsinthecityinthefuture!ThinkingthatIcantakepartinsuchaprogram,it'sreallyexciting."十年后,第一个人依然在砌墙;第二个人坐在公室里画图纸——他成了工程师;第三个人,是前两个人的老板。Tenyearslater,thefirstmanisstillbuildingwalls.Thesecondmanisdrawingdraftssittinginoffice,hebecomesanengineer.Thethirdman,isthebossofthem.