Schiller never wanted to replace the moral with the aesthetic but he did want the moral to be one part of the aesthetic. He rightly notes the aesthetic dimension of morality, that we use concepts like grace to characterise people who do their duty with ease and pleasure.

There is no comfortable middle path where we get to provide a rational justification for our basic moral, religious and common sense beliefs.

Liberals and leftists are not wrong in describing romanticism as reactionary, because it did indeed become that after 1810. The problem is that they make that description true of the movement as a whole, as if romanticism were essentially reactionary.

When Hume insists that taste is a matter of delicacy, that it is a matter of having a sensitivity to features of an object itself, he is very close to the rationalist doctrine. Hume was really a covert objectivist (or partial one) about aesthetic pleasure because that pleasure had to be based on the sensitivity to features in the object.

Schiller never wanted to replace the moral with the aesthetic but he did want the moral to be one part of the aesthetic. He rightly notes the aesthetic dimension of morality, that we use concepts like grace to characterise people who do their duty with ease and pleasure.

The idea of romanticising the world goes back to the idea of creating a harmonious whole where the individual will feel at one with himself, others and nature.

To live well is to live in harmony with ourselves, others and nature, and that idea of harmony is, of course, an aesthetic one.