北京是一片祥瑞覆盖的大地。传说天上的紫宸星座映照着北京，吉禽瑞兽，曼舞呈祥，北京从此孕育了一个伟大的民族。周口店的火种点燃了生命的激情，日月生辉，山川增秀，北京从此开辟了人类文明的新天地。 Preface: Underneath the Imperial Star Beijing is a blessed land beneath the Imperial Star. When the world is young, the life beings are still happy. With the first flame of human life burnt up, a great nation originated. From its bosom rises a human culture that is entering a new phase, adding lustre to the sun and the moon while increasing the beauty of its hills and rivers.