Translation guide
The idea that knowledge gained only from books, without practical experience or real-world application, is not truly useful.
To describe knowledge that is purely theoretical and not applicable to real life.
To criticize someone who has memorized facts but lacks understanding or common sense.
Emphasizes an overemphasis on knowledge, often at the expense of practical skills or wisdom.
Do not translate 'useless book learning' directly as 無駄な本の学習. It sounds unnatural and does not convey the idiomatic meaning.
Literally 'armchair theory', this is the most common way to describe ideas that work on paper but not in reality.
His proposal is nothing but useless book learning.
Refers to someone who has a license but no practical experience, often used metaphorically for any 'paper qualification' without real skill.
He has the qualification but is a paper driver with no practical experience.
A proverb meaning 'swimming practice on tatami mats' – learning without real practice. Literary and somewhat old-fashioned.
No matter how many books you read, it's just useless book learning.
Today's education is all about useless book learning and doesn't develop practical skills.
Literally 'bookworm', often used affectionately but can imply someone who reads without applying knowledge.
He's a bookworm, but his knowledge is useless in the real world.