锐气

一旦心海枯竭，锐气便被冰雪覆盖，玩世不恭、 自暴自弃油然而生，即使年方二十，实已垂垂老矣；然则只要虚怀若谷，让喜悦、达观、仁爱充盈其间，你就有望在八十高龄告别尘寰时仍觉年轻。
When the aerials are down, and your spirit is covered with snows of cynicism and the ice of pessimism, then you are grown old, even at twenty, but as long as your aerials are up, to catch the waves of optimism, there is hope you may die young at eighty.