YOU SAID:
you'll never step in the same river twice
INTO JAPANESE
あなたは決して同じ川の中を二度歩くことはありません
BACK INTO ENGLISH
You never walk twice in the same river
INTO JAPANESE
同じ川で2度歩くことは決してありません
BACK INTO ENGLISH
I will never walk twice in the same river
INTO JAPANESE
私は決して同じ川で2回歩くことはありません
BACK INTO ENGLISH
I will never walk twice in the same river
You've done this before, haven't you.