YOU SAID:

Failing to learn the lessons of history will doom one to repeat it's mistakes.

INTO JAPANESE

歴史の教訓を学ばなければ、それは間違いを繰り返すことになります。

BACK INTO ENGLISH

If you do not learn the lesson of history, it will repeat the mistake.

INTO JAPANESE

あなたが歴史の教訓を学ばなければ、それは間違いを繰り返すでしょう。

BACK INTO ENGLISH

If you do not learn the lesson of history, it will repeat the mistake.