请分析这句英语的句子成份,说明是什么从句,主语什么的.

问题描述:

请分析这句英语的句子成份,说明是什么从句,主语什么的.
A greater degree of wisdom than heretofore as regards the ends of life is becoming imperative

主语是A greater degree of wisdom is becoming imperative 感觉这个不能算是带从句的句子,as reg ards the ends of life是作为wisdom的定 语,than herefore补语