the little prince
The little prince by Antoine de Saint-Exupéry

This small book contains a fairy tale, a story about many things. First of all, Innocence of Childhood and love. The prince loves his roses, but felt disappointed by something the rose said. As doubt grows, he decides to explore other planet. The little prince discovers that his rose is not the only one of its kind, there are thousands of them in a garden, but then he realizes that his rose is special "because it is she that I have watered; because it is she that I have put under the glass globe; because it is she that I have sheltered behind the screen" .
The fox teaches the prince "It is only with the heart that one can see rightly; what is essential is invisible to the eye "
and on responsibility, ""Men have forgotten this truth," said the fox. "But you must not forget it. You become responsible, forever, for what you have tamed. You are responsible for your rose..." "