How much of Japan's traditional culture comes from China ?

[Maciamo]

On the earth, can we find "the pure culture" which has never been influenced by the other culture ?
I am so fool high school student that I cannot find "the pure culture" in the world.

Chinese, Indian or Arabic cultures are quite "pure" if you ask me. If you take all Europe as one culture (without looking at inter-linguistic differences like in India or China), then it is also quite pure. Only a tiny percentage of the whole culture comes from another, completely different culture. We could argue that Christianity is the single biggest cultural import of European civilisation - except if you consider the Hebrew culture as part of European civiliation (after all, most Jews in the world lived in Europe before Israel was re-created in 1947).

Anyway, I was just wondering how much was "original" and how much was "imported". European culture clearly grew out of the Greco-Roman civilisation. It seems to me that Japan grew as much of the Ancient Chinese civilisation as modern China, Korea or Vietnam. The roots are mostly the same, and these cultures now have more similarities than differences.