 Qin Hui , an official of the Song court , recommended a peaceful solution to the conflict in 1130 , saying that , " If it is desirable that there will be no more conflicts under Heaven , it is necessary for the <unk> to stay in the south and the <unk> in the north . " Gaozong , who considered himself a <unk> , initially rejected the proposal . There were gestures toward peace in 1132 , when the Jin freed an imprisoned Song diplomat , and in 1133 , when the Song offered to become a Jin vassal , but a treaty never materialized . The Jin requirement that the border between the two states be moved south from the Huai River to the Yangtze was too large of a hurdle for the two sides to reach an agreement . 
