吮吸手指这件事,宝宝在妈妈腹中就已学会。那么,吃手指是个坏习惯吗?人人都爱吃手指有一则轶事,是关于卡尔·皮尔逊的。据说,他能回忆起童年时代的第一件事是,某个成年人曾言之凿凿地告诉他,最好不要吮吸自己的大拇指,要不然大拇指会萎缩。小卡尔坐在高高的椅子上,将自己的两只大拇指放在一起。观察了半天,他发现被吮吸过的大拇指并不比另外一个未被吮吸的大拇指短。后来,他成为一名统计学家,还被尊称为“统计学之父”。这个故事让我会心 Sucking finger thing, the baby has learned in the mother belly. So, eating finger is a bad habit? Everyone loves to have an anecdote, is about Carl Pearson’s. He is said to recall that the first thing in his childhood was that an adult had telling him that it was best not to suck his thumb or else his thumb would shrink. Carl sat in a tall chair and put his two thumbs together. After observing for a long time, he noticed that the thumb he was sucking was no shorter than another thumb that had not been sucked. Later, he became a statistician, also known as “the father of statistics.” This story let me know