Pierre sat down under the tree and said " I feel strange" and Kasia asked "What's happen?" Pierre answer "I feel strange because of you" and Kasia remind him quote from Antoine de Saint-Exupéry, ― The Little Prince “People have forgotten this truth," the fox said. "But you mustn’t forget it. You become responsible forever for what you’ve tamed. You’re responsible for your rose.” and Pierre decided to tame and Kasia has become his rose