主句：Nothing has to remain the way it is
1、Nothing has to remain ...= everything does not have to remain ...
* not have to 意思是“不必,无须”,nothing has to 意思就是一切都没有必要
* Nothing has to remain the way 意思是“一切都没有必要保留.”
2、the way it is = the way which it is ,即省略了定语从句中的 which,意思是“本来的样子”
条件从句：if that's not the way a person wants it to be,其中——
主句：that's not the way 那不是这种样子
定语从句：a person wants it to be（= which a person wants it to be）
* want it to be 希望它以固有方式存在的（样子）
参考译文：如果那不是一个人希望它以固有方式存在的情形,那么就没有必要保留它的本来面貌.