"What is the problem? If someone goes to bed with your wife you get angry, but if you go to bed and you agree, the question is resolved. [...] If the works have been made available by the authors themselves. It's all linear. If anything, it will be a question of understanding what the product of this union is. On the other hand, it would be artistically serious if one intervened on a work without the author's consent. In practice it is unthinkable that this operation will be done on a work of the sixteenth century, just to understand. (Vittorio Sgarbi)"