賢けん愚ぐ

noun

the wise and the foolish; wisdom and folly

A somewhat literary or formal noun contrasting intelligence and foolishness, often used in philosophical or reflective contexts.

• 賢けん愚ぐの差さは教きょう育いくだけでは説せつ明めいできない。

  The difference between the wise and the foolish cannot be explained by education alone.