there is no permanent rule in the world
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“the universal human yearning for something permanent, enduring, without shadow of change”(Willa Cather)
“全人类渴望没有变化、永恒且持久的东西”(威拉·卡瑟)
There is no law immutable in the world.
there is nothing unchangable in the world
There is no constant law in the world