Dictionaries Can Be Wrong A learner of Chinese asked, what does "清者自清" mean? Another learner told her that he found the explanation in the link below. http://en.bab.la/dictionary/chinese-english/%E6%B8%85%E8%80%85%E8%87%AA%E6%B8%85%EF%BC%8C%E6%B5%8A%E8%80%85%E8%87%AA%E6%B5%8A "the wise man knows he knows nothing, the fool thinks he knows all" This is literally poor translation because it is totally wrong. Actually, it means if someone has not done anything wrong, he is innocent even if he did not defend himself. Learners of Chinese, you might like to be cautious with this dictionary.