One of them is the moral permissibility of various practices.

一是多种行为德是否允。

Do you think it's possible to decide whether abortion should be permitted or prohibited without taking a stand or making a judgment about the moral permissibility of abortion?

你认为能否在对堕德容性不持任何立场，也不作任何评判情况下，来决定是应该允还是禁止堕？

The other is the fit between certain practices, whatever their moral permissibility, with the honor or recognition that the state should accord in allowing marriage. So Steve has a pretty good counter argument.

二是不论德上是否允，特定行为是否应该得到国家尊重以及认可，并且相应地允婚姻。所以史蒂夫反驳很出色。