事实层面

I have excluded him because,while his accomplishments may contribute to the solutionof moral problems, he has not been charged with the task of approaching any but thefactual aspects of those problems.

译文我之所以把他排除在外,是因为尽管他的成果可能有助于解决道德问题,但他只是承担了处理那些问题的事实层面的任务。

点睛

because引导的是原因状语从句,其中还包含while引导的让步状语从句。be charged with...此处意为“被命令做…”。not...any but...意为“仅仅”,相当于only。approach此处意为“处理”,其宾语为the factual aspects of those problems。