飛ひ耳じ長ちょう目もく

expression

sharp eyes and ears for gathering information far and wide; acumen and shrewd discernment from widely collected information; being well-versed on a subject; books that broaden one's knowledge

A yojijukugo describing a person who actively seeks out information from many sources, thereby gaining keen insight and broad knowledge. Can also refer to the books or materials that provide such knowledge. Rare and literary.

• 彼かれは飛ひ耳じ長ちょう目もくで、世せ界かい中じゅうのニュースに詳くわしい。

  He has sharp eyes and ears, and is well-informed about news from around the world.

• 飛ひ耳じ長ちょう目もくの書しょを読よむことで、見けん聞ぶんが広ひろがった。

  Reading books that broaden one's knowledge expanded my horizons.