see the error of ways
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see the error of your/its ways(slightly formal)
to accept that you have been wrong about something What can we do to make Tim see the error of his ways? The industry needs to see the error of its ways and adopt these new safety standards.
see the error of your ways
to understand that you have been behaving badly and to decide to improve your behaviour It's the story of a corrupt policeman who finally sees the error of his ways.