扪:摸;清:寂静。指深夜不眠,进行自我反省。例句岂其扪心清夜,果自谓然?(摘自《卷一百四十八 集部一 集部总序》)
examine one's conscience in the stillness of night <make self-examination in the still of the night>
扪(mén)
心(xīn)
清(qīng)
夜(yè)