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People should not live in the past. Therefore, people should quickly forget hatred, because the world is developing rapidly, and the things and people we once hated have already undergone significant changes. If we persistently hate their past illusions, we remain stuck in the past and are left behind by the world.
This is the characteristic of this era; due to the swift pace of social development, we must quickly forget hatred in order to live a happy and successful life, in terms of both career and family.
What if others refuse to forget? They might sink to the bottom of society, but we should not stoop to their level.
In fact, the world indeed is getting better as it develops. We must look forward.