The full sentence is: "On ne voit bien qu'avec le cœur. L'essentiel est invisible pour les yeux." This translates to: .
It suggests that the most important things in life—like love, friendship, and character—cannot be understood through physical sight alone. They must be felt and experienced through the "heart" or one's inner essence. Key themes in the text LEssentiel est Invisible
: To "tame" someone is to establish a bond that makes them unique to you. While there are thousands of roses, the Prince's rose is "essential" because of the time and care he gave it. The full sentence is: "On ne voit bien qu'avec le cœur