Page "Ode on a Grecian Urn" Paragraph 80

I am at first inclined to agree ...

But on re-reading the whole Ode, this line strikes me as a serious blemish on a beautiful poem, and the reason must be either that I fail to understand it, or that it is a statement which is untrue.

And I suppose that Keats meant something by it, however remote his truth and his beauty may have been from these words in ordinary use.

And I am sure that he would have repudiated any explanation of the line which called it a pseudo-statement ...

The statement of Keats seems to me meaningless: or perhaps the fact that it is grammatically meaningless conceals another meaning from me.