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Share joys and sorrows,
The fear of death is a connecting link.
, connecting the past with the future, learning from the world, perseverance, taking care of one thing and losing another, liking the new and hating the old.
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Evil is invincible, we should learn from the past, foster strengths and avoid weaknesses, from far to near, get rid of the rough and select the fine, survive the fittest, break the old and establish the new, simplify the complex and do the opposite.