刘熙载《艺概》云：“论书者曰苍、曰雄、曰秀,余谓更当益一深字。凡苍而涉于老秃,雄而失于粗疏,秀而入于轻靡者,不深故也。”读了《卢乐群书法作品集》,觉得其书笔力雄健、气势博大之外,而有着深沉的内涵,正合于刘熙载所要求的“深”字。 Liu Xizai “art outline” cloud: “On the book said Cang, Yue Xiong, said show, Yu even more benefits of a deep word. Where the Cang and old alopecia arena, and lost in the coarse, show and into the swell , Read the ”Collection of Calligraphy of Lu Lequn“ and found that the book is full of vigor and vitality, but has profound connotations that are suitable for the ”deep" character required by Liu Xizai.