First off they do not kiss at the end. Beatrice ends up drinking an antidote given to her by Giovanni who got it from Professor Baglioni. She dies and Giovanni is left to live. The lesson to be learned in my opinion is that people cannot continously expect nature to change because of the experiments done to it.
The Rappaccini's Daughter is a fictitious tale about a doctor who makes poison and develops it to such an extent that he ends up loosing the most beautiful and precious thing he owns "his daughter". The story begins when a young guy. Comes to this new town. The window of his room opens into a beautiful garden, this garden has flowers of an unusual kind. They have different colors, shapes and although they are really mesmerizing to look at they have something evil about them. The garden belongs to Dr. Rappaccini. He is known in the town for his deadly experiments. The young man cannot help him self stare at the garden every day.
One day he sees a beautiful young woman in the garden. Now when he sees that this woman it is hard for him to resist and he find out he right time to go and talk to the girl. He does go to the garden and talks to the girl and immediately falls in love with her, however the evil doctor sees his daughter and scold her that she is not allowed to mingle with other humans as she is different from all. This love takes a beautiful bloom but the girl never allows the young man to touch her. One day he asks and is shocked to hear that evil Dr. Rappaccini had created a poisonous creature his own daughter is one of his experiments. In the end the girl and the guy kiss and they both die telling Dr. Rappaccini that "True Love never fails "
