And Milton, or the Elder Brother here, is clearly thinking of Revelation 14, in which it's only the pure spirit or the virgin -- that can even begin to hear the new song being sung before the throne of God.

弥尔顿，或者大哥，显然说的是《启示录》第14章的内容，那里说只有纯净的精神或有童贞,才可以听到在上帝面前唱的新歌。

耶鲁公开课 - 弥尔顿课程节选

And if that's an appealing argument that you have to be in an altered mindset to do something like that, it suggests that people who find that argument convincing do think that they were acting immorally.

而如果只能用这样的辩词,说只有人精神状况不正常，才会干出那种事，这也就意味着，那些觉得该论证有说服力的人们,其实是认为他们行为是不道德的。

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