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前事を忘れざるは後事の師なり

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前事を忘れるは後事の師なり

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Forgetting the previous event is the master of the latter

INTO JAPANESE

前のイベントを忘れることは後者のマスターです

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Forgetting the previous event is the latter's master

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前のイベントを忘れることは後者の主人です

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Forgetting the previous event is the latter husband

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前のイベントを忘れるのは後者の夫です

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It is the latter's husband who forgets the previous event

INTO JAPANESE

前の出来事を忘れるのは後者の夫です

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It is the latter's husband who forgets the previous event