《论衡·卷二十三·薄葬篇》
论证问题不集中精力深入思考，只是根据表面现象来判断事情的是非，只依据外在的见闻，不通过内心分析判断，这就是光凭耳目见闻而不是通过内心思考来论事。
夫论不留精澄意，苟以外效立事是非，信闻见於外，不诠订於内，是用耳目论，不以心意议也。
In considering a problem, if one does not concentrate one's mind on the matter, but judges from superficial phenomena, if one depends only on external information without analysing internally, this is called judging things not by one's mind.