Einstain was a great admirer of Charlie Chaplin's film.Once,in a letter to Chaplin,he said,"i admire you very much.Your film'Modern Time' everybody in the world can understand.You will certainly become a great man.Einstain."
In this answer to this letter ,Charlie Chaplin wrote,"i admire you even more.Your Theory of Relativity,nobody in the world understands,but you have already become a great man. Chaplin."
