Japanese or Chinese? which language should I learn if I want to study I Ching?

Question:

I would like to study I Ching. http://en.wikipedia.org/wiki/I_Ching this i'm talking about. I know this study originated from China but I am skeptical because China is authoritarian state and all and their government might have banned such great learning. I was wondering if Japanese scholars have contributed in many ways to this Asian philosophy because because Japan is a large Asian nation. I'm thinking about Japanese also because I think it will be easier to learn. Thanks.
so which language should I learn?

Answer:

The answer is Chinese.

I don't think Japan has anything to do with this philosophy.