@WilsonCusack Right but putting your foot down and saying X always supersedes Y also easily has big unkown consequences.
Mill's approach feels to me like "of course you don't calculate the good every time, you follow good rules, but be mindful of exceptions"
@威尔森·库萨克（WilsonCusack）说得对，但如果你说X总是取代Y，也很容易产生很大的未知后果。
米尔的方法让我觉得“当然，你不是每次都计算好的，你遵循好的规则，但要注意例外情况。”