YOU SAID:
Eternal greatness only exists within myself
INTO JAPANESE
永遠の偉大さは自分の中にしか存在しない
BACK INTO ENGLISH
Eternal greatness is only in me
INTO JAPANESE
永遠の偉大さは私の中にあるだけ
BACK INTO ENGLISH
Eternal greatness is only in me
You've done this before, haven't you.