The english version using only the books creates okayish unconditional quotes and works badly in the conditional interactive mode.
In addition, I am not sure if the network overfitted the training text a bit. It did not learn the text by heart, but it seems to me that some of the earlier training samples were better than the later ones.
As the input is only 6 MB, it could just be too little input.
Or I am just expecting too much.