从前有一户人家的菜园摆着一颗大石头,宽度大约有四十公分,高度有十公分。到菜园的人,不小心就会踢到那一颗大石头,不是跌倒就是擦伤。儿子问:“爸爸,那颗讨厌的石头,为什么不把它挖走?”爸爸这么回答:“你说那颗石头喔?从你爷爷时代,就一直放到那里了,它的体积那么大,不知道要挖到什么时候,没事无聊挖石头,不如走路小心一点,还可以训练你的反应能力。” Once upon a time, there was a big stone in the garden of a family, about 40 centimeters in width and 10 centimeters in height. To the garden people, accidentally kicked that a big stone, not a fall or abrasions. My son asks: “Daddy, that nasty stone, why not dig it?” “Dad replied:” You said that stone? Since your grandfather’s time, has been put there, and its volume So big, do not know when to dig, nothing boring digging stones, it is better to walk a little more careful, you can also train your ability to respond.