For instance, with the weather, it is usually the case that "a gale will not blow all morning, a downpour will not continue all day." If even the wind and the rain, which are made by heaven and earth, cannot persist, then what of human efforts?
如大自然的氣象常是「飄風不終朝，驟雨不終日」，大風刮不了一早晨，急雨下不了一整天，天地作風作雨，都不能持久，何況於人？