YOU SAID:

Do not do unto others what you don't want done unto you.

INTO JAPANESE

自分にしてほしくないことを他人にしてはいけません。

BACK INTO ENGLISH

Don't do to others what you don't want them to do to you.

INTO JAPANESE

自分にしてほしくないことを他人にもしないでください。

BACK INTO ENGLISH

Don't do to others what you don't want them to do to you.