妲己再美终是亡国妃孤君再傲终是亡国君
[dá jĭ zài mĕi zhōng shì wáng guó fēi gū jūn zài ào zhōng shì wáng guó jūn]
'Da Ji' in Chinese history was the last queen of Shang Dynasty whose existence was thought as a reason for its destruction. On the other hand 'gu jun' implies proud rulers can also bring about downfall if they're overconfident and neglecting national management.