It is not who is right but is right that is of importance的翻译,为什么but后加is right

问题描述:

It is not who is right but is right that is of importance的翻译,为什么but后加is right

这是个名言吧,是不是你句子记错啦?
"It is not who is right,but what is right,that is of importance." -- Thomas Huxley.
这个是原文,意思是:不在于谁说的是真理,而总要的是,什么才是真理.