When I was a kid, all the books around me were written in Chinese. I absorbed all the knowledge about Chinese culture. When I grew up, I heard many interesting stories related to the history of foreign countries. I was deeply interested in their cultures. I wanted to know more about the whole world. But about 80% of books around the world were written by English. But all the books translated into your native language might not really carry across the opinions of the authors well. So, if we are good at English, we can directly read the original editions well. Meanwhile, for my foreign friends, who really like Chinese culture, we can translate Chinese into English. We live on this charming planet as if we were a family. When we meet each other, the first thing we do is to have a conversation on any topic. English is definitely the best tool to help us getting to know each other well nowadays, but I hope Chinese can replace English sometime.