To correct it would alloy it, not refine it.

It would spoil it.

It would take from it its freedom and flexibility and make it stiff and formal.

Even when it is most extravagant I am not shocked.

It is Susy's spelling, and she was doing the best she could--and nothing could better it for me....
Susy began the biography in 1885, when I was in the fiftieth year of my age, and she just entering the fourteenth of hers.