壹天，老師帶學生到養雞場參觀，當他們走近孵化器時，剛好壹只小雞破殼而出。
"It's wonderful to see a little thing come out from the egg shell, isn't it？" the teacher said.
“看見壹個小生命從蛋殼裏出來，豈不是很奇妙的嗎？”老師說。
"Yes, sir." said one of the boys, " but it would be more wonderful if we knew how a chick gets in to its eggs hell before hand."
“是的，老師。”壹個男學生說，“可是，如果我們知道它是怎樣事先鉆進蛋殼裏的那就更奇妙了。”