eternal and un changeable; immutable; never-changing; un changeable; unchanging ❍ 事实胜于雄辩,这是一条~的真理。Facts speak louder than words.This is an eternal truth.
万古不变wàn ɡǔ bù biàn
万古:形容经历的时间很长。形容永远不改变。no change forever, immutable, unchangeable, eternal and immutable