角を矯めて牛を殺す

つのをためてうしをころすtsunootameteushiokorosu

expression · godan verb

1. to throw the baby out with the bath water
2. to strain at a gnat and swallow a camel
3. to obsess over insignificant details and miss the larger point
4. to straighten the horns and kill the cow

Study it in Yanamino