Nada

“What is a teacher? I'll tell you: it isn't someone who teaches something, but someone who inspires the student to give of her best in order to discover what she already knows.”
― Paulo Coelho, The Witch of Portobello

“Doubt thou the stars are fire;
Doubt that the sun doth move;
Doubt truth to be a liar;
But never doubt I love.”
― William Shakespeare, Hamlet

“But I'm glad you'll see me as I am. Above all, I wouldn't want people to think that I want to prove anything. I don't want to prove anything, I just want to live; to cause no evil to anyone but myself. I have that right, haven't I?”
― Leo Tolstoy, Anna Karenina

“Dumbledore watched her fly away, and as her silvery glow faded he turned back to Snape, and his eyes were full of tears.
"After all this time?"
"Always," said Snape.”
― J.K. Rowling, Harry Potter and the Deathly Hallows