个人认为这句话有问题,他的本意是想说dontneedtochangeforanybody

　　别为任何人改变,要么说changefornobody,

　　要么说dontchangeforanybody否定句中用any肯定用some

　　但是外国人说是都可以的,下面是我大学外教老师的回答,请参考：

　　[10:56:26]WilliamDHunter:itmeansyoucanbeyourselfandnotbesomebodyyouarenotinotherwords,youarewhoyouareifsomecannotacceptitthatistheirproblem

　　[10:57:40]WilliamDHunter:youcanuseanybodyalso

　　[11:00:09]WilliamDHunter:yesbutismoreidiomaticorsomewouldsayslagornonstandard,butwithnobodyyouusebodylanguagetogetthefullmeaningforexamplemoveyourheadfromsidetosideandroolyourneck,atthesametimealongwingwithraisingyourvoicealittlebitlikeyouareangry,butnotrealangrymorelikeirritated

　　他的意思是两者皆可.anybody更正式标准一些,当用nobody,一般是俚语或非标准口语,并且可能配合肢体语言用于强调,比如摇头、提高声调等,虽然不至于很生气,但是很激动的情形下使用.

　　以上仅供参考,欢迎批评指正.