Yang negated the opinions which were not accord with his Xin-Xue thought in Si-Shu. He made new explanations and put them in his own Xin-Xue thought system.

Both of these "books" are considered part of another collection known as the Four Books.

"Four Books" compulsory education, if successful, perhaps it will be brought in additional new content, will have to add hundreds of various schools.

My target is to collect 159 points and then download the full set of Four and Five Confusian Classics!

There are profound connections between the philosophy and the Four Books in the Song dynasty.