Be unconcerned and dispassionate
Chinese idiom, Pinyin is B ù Ji ū B ù C ǎ I, meaning ignore. It comes from Jin Ping Mei CI Hua.
The source of the idiom is Chapter 56 of Jinpingmei Cihua: "the woman only talks, but she is not pleased to see Chang Er. She is a bit ashamed of herself, and she can't help crying."
Be unconcerned and dispassionate
there cannot be two kings in a country - tiān wú èr rì
military forces can use insidious tactics - bīng xíng guǐ dào