YOU SAID:

Don't say everything you know, but know everything you say.

INTO JAPANESE

あなたが知っているすべてのものを言うが、あなたが言うすべてを知ってはいけません。

BACK INTO ENGLISH

They say all the things you know, but do not know everything you say.

INTO JAPANESE

彼らはあなたが知っているすべてのものを言うが、あなたが言うすべてを知りません。

BACK INTO ENGLISH

They say all the things you know, but do not know everything you say.