sanity

People have begun to doubt his sanity.人们已经开始怀疑他的精神是否正常。

She is the mother of six children but somehow keeps her sanity.她是六个孩子的母亲，但精神状态良好。

I need a vacation to regain/recover my sanity. [=to begin to feel normal and relaxed again]我需要度假，以便恢复精神。

The sanity of the decision was never in question.这个决定的明智从未受到过质疑。