My dear margarita: I can't hear from you, you can't hear from me, and we can't know each other's recent situation. I have been trying to think about how to solve this thorny problem. Although people praise me for being smart and wise, there is nothing I can do. At present, I began to read a book about magic and prophecy. It made me believe that there was a devil between us and lost our fish and geese. I hope you can live a satisfactory life in the pleasant scenery of your hometown. Everything is fine with me, and my work is going well. I was lying on the sofa, smoking the pipe you gave me, and writing with your beloved pencil in the watery night. I wish all the best! Kiss you! Your "A E" shows deep affection in a few words. This is not an ordinary letter, it was written by Einstein, the greatest physicist in the 20th century and the founder of the theory of relativity. This letter, along with Einstein's watch, many paintings, some photos and letters of Zhang Zhengui, appeared in Sotheby's auction. They showed the world a tearful love story between a world-famous scientific giant and Margarita KoNinkov, the wife of a famous Russian sculptor.