quote from my chinese law textbook

"Taiwan is part of the sacred territory of the PRC. It is the inviolable duty of all Chinese people, including our compatriots in Taiwan, to accomplish the great task of reunifying the motherland. The policy is well-known that Taiwan may enjoy a different social and political system from that of the mainland when China is reunified. The policy of one country with two systems has been the consistent policy of the Chinese government to resolve the Taiwan problem."