在乐器间形成音场,"此曲名《四极共鸣》," 乐声如磁矿流动,"奏的是大元文教。"
书院后厨,蒙古学生那颜正教吐蕃同学扎西制作奶酒,磁石酒坛与吐蕃青稞酒罐相吸:"我蒙古的奶酒需磁石封坛," 他指着坛口的磁石塞,"你们吐蕃的青稞酒," 望向正在发酵的酒罐,"若用磁石滤渣," 磁石网在酒液中轻轻晃动,"滋味更醇。"
冬至祭孔大典,吐蕃赞普使者献上嵌磁石的贝叶经《宝云经》,经页上的藏文与蒙汉双文对照清晰:"贵国的磁石活字," 使者的藏语经翻译,"已能印制我吐蕃的《甘珠尔》," 指向藏书阁的磁石经架,"从此吐蕃学子," 目光落在研习藏文的汉地学生身上,"不必再手抄经卷。"
萧虎抚过吐蕃经页,虎符与经中磁矿相吸:"孤已命人," 他对仁青贝道,"将吐蕃的《贤者喜宴》刻入磁石经版," 指向正在翻译的《吐蕃工艺记》,"让汉地的《天工开物》," 经版磁矿与吐蕃磁矿共振,"与吐蕃的工艺之学," 声音渐宏,"共传万代。"
波斯学者札马鲁丁趁机呈上吐蕃文星历:"贵国与吐蕃的天文之学," 他的星历融合汉地浑天说与吐蕃时轮历,"在马拉盖天文台交相辉映," 星历磁石指针指向大昭寺方向,"正如磁石之两极," 望向吐蕃学生,"相吸而不相斥。"
大都城南的匠人巷,吐蕃工匠尼玛多吉的唐卡铺里,汉地学徒正在学习矿物颜料调制:"这石青需加漠北磁矿," 他的藏式围裙上沾着磁石粉,"方能长久不褪," 指向墙上新绘的《文殊菩萨像》,"菩萨衣饰的磁石纹," 与铺内磁石灯柱共振,"能保万邦学子聪慧。"
耶律楚材在《虎贲书院志》中增补:"科举分榜,非分族类,乃分其长:蒙古榜取武略,汉人榜取文韬,色目榜取奇技,吐蕃榜取佛学。此等设科,如磁石之四极,各吸其类,共成万有引力。"
当磁石钟楼的报时声再次响彻大都,吐蕃学生扎西正用磁石活字排版《吐蕃医典》,蒙古学生那颜在旁校正蒙文译稿,汉地学生陈墨研磨磁石墨汁。三种语言的讨论声中,磁石活字在印版上排列成 "文教覃敷" 四文合璧,正如大元文明,在不同文化的相吸相生中,绽放出超越时代的光芒。
至正年间,欧洲传教士鄂多立克在《东游录》中增补:"大元科举分四榜,各取其长而不相碍,犹磁石之吸铁,各依其性而聚。虎贲书院中,吐蕃僧人与汉地儒生共研医典,蒙古武士同回回学者探讨星象,此等盛景,真乃文明之磁心也。"
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