知らない方がいい事もあるし。の英語

There are things you're better off not knowing.

There are things you're better off not knowing.

To put it succinctly, I don't know, and I don't want to know.

Pretend you don't know anything.

As if you didn't know!

I don't know and don't want to know.

I don't know and I don't want to know.

It is no use your pretending that you know nothing.

As if you knew everything!

of an act, feigning ignorance

the state of being totally unfamiliar with something

He knows nothing, and yet he talks as if he knew everything

He talks as if he knew everything while he knows nothing at all.

profess ignorance

of a person, pretending not to know something even though she or he does know it, because knowing it is inconvenient

not knowing or perceiving

It is dangerous to prejudge what you do not know.

A fat lot you know about it!

a person who is a total stranger

What do you mean you don't know?!

There is no one but knows it.

I don't know it. Nor does he.

I don't know and neither does he.

to jump to conclusions

I wouldn't know.

I know one of them but not the other.

Where ignorance is bliss, 'tis folly to be wise.

to pretend not to know something even though one knows it

One may as well not know a thing at all, as know it but imperfectly.

There are few men who don't know that.