The more thou stir it, the worse it will be. - Miguel de Cervantes

In short, our gentleman became so immersed in his reading that he spent whole nights from sundown to sunup and his days from dawn to dusk in poring over his books, until, finally, from so little sleeping and so much reading, his brain dried up and he went completely out of his mind. He filled his imagination with everything he had read, with enchantments, knightly encounters, battles, challenges, wounds, with tales of love and its torments, and all sorts of impossible things, and as a result had come to believe that all these fictitious happenings were true; they were more real to him than anything else in the world.

En mütevazi kalbi bile usulca ele geçiren düşmanlar: riyakarlık ve kibir.

...be sure to dress him so that you hide what he is and he looks like what he'll become.