骥子、龙文皆为骏马名。北朝裴延俊从父兄宣明有二子景鸾和景鸿，二人皆有逸才，河东遂称景鸾为“骥子”，景鸿为“龙文”。见《北史・卷三十八・裴延俊传》。后以骥子龙文称赞人才华出众，或赞誉别人子弟才能杰出。
英语 a man of no common appearance and very noble in his looks
