必要な時に発揮できない知識なんてムダそのものですよの英語

Knowledge must be digested （and assimilated）before it can be of use.

There are times when knowledge you thought of as useless becomes useful when you least expect it.

Knowledge without common sense counts for nothing.

Book learning is not enough to make you an able man in practice.

Knowledge without common sense counts for nothing.

Knowledge alone doesn't qualify you to teach.

the condition of having much knowledge but putting it to no practical use

the condition of being unable to digest knowledge

Knowledge is power without doubt.

lack of experience and the knowledge and understanding derived from experience

unaware because of a lack of relevant information or knowledge

being rich only in knowledge and not in experience, described in Japanese culture as having a big head

the wisdom one has borrowed in order to get through a crisis

It is no use pretending you know nothing about it.

Knowledge has little to do with wisdom.

No matter how much you hear it from other people or read books, you won't be able to understand.

If you cannot understand good advise, you cannot obey it.

Knowledge is an intangible asset.

the action of using borrowing wisdom to get through a crisis

shrewd purchasing requires considerable knowledge

Knowledge is scarce; wisdom is scarcer.

a person who has much knowledge but puts it to no practical use

not having the necessary means or skill or know-how

the condition of not being judged by ordinary rules of ability or schooling

Recently basic knowledge about information processing is a skill that people are expected to have.

It is not good to think "If I was a little smarter I would be able to understand this." whenever you are confronted with something you can't work your head around.

you do not have to be a rocket scientist to figure that out

useful experience and knowledge for one's future

the doctrine that knowledge is acquired by reason without resort to experience

Wet blankets are not always unpleasant after you get to know them.