Grown-ups never understand anything by themselves, and it is tiresome for children to be always and forever explaining things to them.
The Little Prince, Antoine de Saint Exupéry
And when your sorrow is comforted (time soothes all sorrows) you will be content that you have known me. You will always be my friend. You will want to laugh with me. And you will sometimes open your window, so, for that pleasure … And your friends will be properly astonished to see you laughing as you look up at the sky! Then you will say to them, ‘Yes, the stars always make me laugh!’ And they will think you are crazy. It will be a very shabby trick that I shall have played on you..
Antoine de Saint-Exupéry, The Little Prince
Where are the people?” resumed the little prince at last. “It’s a little lonely in the desert…”
“It is lonely when you’re among people, too,” said the snake.
The Little Prince, Antoine de Saint Exupéry 
All men have the stars,” he answered, “but they are not the same things for different people. For some, who are travelers, the stars are guides. For others they are no more than little lights in the sky. For others, who are scholars, they are problems. For my businessman they were wealth. But all these stars are silent. You — you alone — will have the stars as no one else has them — “
-“What are you trying to say?”
“In one of the stars I shall be living. In one of them I shall be laughing. And so it will be as if all the stars were laughing, when you look at the sky at night… You — only you — will have stars that can laugh!
The Little Prince, Antoine de Saint-Exupéry
One day,” you said to me, “I saw the sunset forty-four times!”
And a little later you added:
“You know– one loves the sunset, when one is so sad… ”
“Were you so sad, then?” I asked, “on the day of the forty-four sunsets?”
But the little prince made no reply.
Little Prince, Antoine de Saint-Exupéry
To me, you are still nothing more than a little boy who is just like a hundred thousand other little boys. And I have no need of you. And you, on your part, have no need of me. To you, I am nothing more than a fox like a hundred thousand other foxes. But if you tame me, then we shall need each other. To me, you will be unique in all the world. To you, I shall be unique in all the world …
The Little Prince, Antoine de Saint-Exupéry
All grown-ups were once children… but only few of them remember it.
Antoine de Saint-Exupéry, The Little Prince
Nobody grasped you by the shoulder while there was still time. Now the clay of which you were shaped has dried and hardened, and naught in you will ever awaken the sleeping musician, the poet, the astronomer that possibly inhabited you in the beginning.
Antoine de Saint Exupéry,  Terre des Hommes
I am very fond of sunsets. Come, let us go look at a sunset…
Antoine Exupery, The Little Prince