Of course, society sometimes cares about motives — mens rea and scienter are common considerations in legal matters.

当然，社会有时需要关注动机——犯罪意图和主观故意是法律问题常见的考虑。

Certainly they are much rarer than the ordinary mistakes or accidents which exclude intention or mens rea in the ordinary sense.

它们当然比排除通常意义上的故意或犯意的一般错误或意外事件要罕见得多。

In many criminal cases, the common-law requirement that a defendant must have a mens rea (ie, he must or should know that he is doing wrong) has been weakened or erased.

在许多刑事案件中，惯例法所要求的被告人应该有犯罪动机(如，他必须或者应该知道自己现在所做的事是不正确的)的规定已经在逐步地弱化或移除。