口こう耳じの学がく

noun

shallow learning; superficial knowledge

Refers to knowledge that is merely heard and repeated without deep understanding; a classical expression used in literary or critical contexts.

• 彼かれの知ち識しきは口こう耳じの学がくに過すぎず、本ほん質しつを理り解かいしていない。

  His knowledge is nothing more than shallow learning; he doesn't understand the essence.