examine one’s con science; introspect; search one’s heart; self examination ? 他～，不得不承認自己錯了。By searching his heart he could not but admit that he was in the wrong.
捫心自問mén xīn zì wèn
捫：按、摸。手摸著胸口，自己問問自己怎么樣。形容自我反省。examine one’s conscience, look into one’s own heart, search one’s heart(soul,conscience)