Here is my secret. It is very simple. It is only with the heart that one can see rightly; What is essential is invisible to the eye.

[Voici mon secret. Il est très simple: on ne voit bien qu’avec le cœur. L’essentiel est invisible pour les yeux.]

Antoine de Saint-Exupéry (1900-1944) French writer, aviator

Le Petit Prince [The Little Prince] (1943)

Alternate translations:

• "Here is my secret. It is very simple: one sees well only with the heart. The essential is invisible to the eyes."
• "The essential things in life are seen not with the eyes, but with the heart."