As was certain to happen sooner or later, King Lune said it was time for young people to be in bed. “And tomorrow, Cor,” he added, “shalt come over all the castle with me and see the estate, and mark all its strength and weakness: for it will be thine to guard when I’m gone.”
“But Corin will be the King then, Father,” said Cor.
“Nay, lad,” said King Lune, “thou art my heir. The crown comes to thee.”
“But I don’t want it,” said Cor. “I’d far rather–”
“‘Tis no question what thou wantest, Cor, nor I either. ‘Tis in the course of law.”
“But if we’re twins we must be the same age.”
“Nay,” said the King with a laugh. “One must come first. Art Corin’s elder by full twenty minutes. And his better too, let’s hope, though that’s no great mastery.” And he looked at Corin with a twinkle in his eyes.
“But, Father, couldn’t you make whichever you like to be the next King?”
“No. The King’s under the law, for it’s the law makes him a king. Hast no more power to start away from thy crown than any sentry from his post.”
“Oh dear,” said Cor. “I don’t want to at all. And Corin– I am most dreadfully sorry. I never dreamed my turning up was going to chisel you out of your kingdom.”
“Hurrah! Hurrah!” said Corin. “I shan’t have to be king. I shan’t have to be king. I’ll always be a prince. It’s princes have all the fun.”
“And that’s truer than thy brother knows, Cor,” said King Lune. “For this is what it means to be a king: to be first in every desperate attack and last in every desperate retreat, and when there’s hunger in the land (as must be now and then in bad years) to wear finer clothes and laugh louder over a scantier meal than any man in your land.”
–C.S. Lewis, The Horse and His Boy in The Chronicles of Narnia (New York: HarperCollins, 1954/1994), 309-310.