It occurs to me that artists go forward by going backward, something which I have nothing against intrinsically when it is a reproduced retreat — as is the case with the better artists. But it does not seem right that they stop with the historical themes already given and, so to speak, think that only these are suitable for poetic treatment, because these particular themes, which intrinsically are no more poetic than others, are now again animated and inspirited by a great poetic nature. In this case the artists advance by marching on the spot. — Why are modern heroes and the like not just as poetic? Is it because there is so much emphasis on clothing the content in order that the formal aspect can be all the more finished?

Kierkegaard Journals and Papers 1A, 86 September 29, 1835 - The Journals of Søren Kierkegaard