公元前6世纪的古希腊,有一位叫毕达哥拉斯的哲学家。一天,他经过一家铁匠铺,听见铺子中传出叮叮当当的打铁声,特别悦耳,感觉声音中似乎隐藏着什么秘密。他走进铺子,拿起尺子量了一下铁锤和铁砧的尺寸, In ancient Greece in the 6th century BC, there was a philosopher named Pythagoras. One day, after passing through a blacksmith’s shop, he heard the sound of clapping irons in the shop, which was especially pleasing to the ear, and it seemed that there seemed to be some hidden secret in his voice. He walked into the shop and took up the ruler and measured the size of the hammer and anvil.