George Macdonald 
The Princess and the Goblin [EPUB ebook] 

THERE was once a little princess who…
‘But, Mr. Author, why do you always write about princesses?’
‘Because every little girl is a princess.’
‘You will make them vain if you tell them that.’
‘Not if they understand what I mean.’
‘Then what do you mean?’
‘What do you mean by a princess?’
‘The daughter of a king.’
‘Very well, then every little girl is a princess, and there would be no need to say anything about it, except that she is always in danger of forgetting her rank, and behaving as if she had grown out of the mud. I have seen little princesses behave like the children of thieves and lying beggars, and that is why they need, to be told they are princesses. And that is why, when I tell a story of this kind, I like to tell it about a princess. Then I can say better what I mean, because I can then give her every beautiful thing I want her to have.’
‘Please go on.’