It is curious to note that many great artists, especially in the 19th and 20th centuries, have had personal relationships with each other. Curious because, something that should configure normality, seems the exception. Previous centuries, in which distances seemed greater, saw themselves more or less dependent on a whim of fate to concentrate superior spirits in certain locations, as has marvelously occurred a few times in history. But still, something more is needed for a friendship to be established. And both whimsy and this something more seem to have abounded in the 19th and 20th centuries, when there were so many great names who knew each other, who were truly friends. I cannot notice it, without feeling sincere glee for all of them.