I love this.

The little prince went away to look again at the roses.
"You are not at all like my rose," he said.
"As yet you are nothing. No one has tamed you, and you have tamed no one. You are like my fox when I first knew him. He was only a fox like a hundred thousand other foxes. But I have made him my friend, and how he is unique in all the world."

And he went back to meet the fox.
"Goodbye," he said.
"Goodbye," said the fox. "And now here is my secret, a very simple secret. It is only with the heart that one can see rightly; what is essential is invisible to the eye."
"What is essential is invisible to the eye," the little prince repeated, so that he would be sure to remember.

From The Little Prince, by Saint Exupery