Hu: Japan must fully understand the seriousness things;Japan must fully understand the seriousness of the situation, do not make the wrong decision.Wu bangguo: Japanese any way "purchase island" are illegal;Japanese take any way "purchase island" is illegal, invalid, China firmly opposed.Wen jiabao: in fishing island problem will never concede half step;Diaoyu islands is China's inherent territory, sovereignty and territorial issues, the Chinese government and people will never concede half step.Li keqiang: Japan "purchase island" behavior serious challenge post-war international order;Japan is to the world's anti-fascism war results openly deny, is to the post-war international order of the serious challenges. (胡锦涛：日方须充分认识事态严重性 日方必须充分认识事态的严重性，不要作出错误的决定。 吴邦国：日方任何方式"购岛"均非法 日方采取任何方式“购岛”都是非法的、无效的,中方坚决反对。 温家宝：在钓岛问题上绝不退让半步 钓鱼岛是中国固有领土，在主权和领土问题上，中国政府和人民绝不会退让半步。 李克强：日本"购岛"行为严重挑战战后国际秩序 日本是对世界反法西斯战争胜利成果的公然否定，是对战后国际秩序的严重挑战。 )