I always think this planet we are living in is made of words.  Please be shared with me an educational article which is attached below.

古人是用文言文方式说话的吗？如果不是，文言文又是怎么出现的？ (toutiao.com)    

PS Just a joke.  When an English teacher in my high school class taught us a piece of idiom "Pen is stronger than arms", at first glance I mistook it for "Penis stronger than arms".