石渠寶笈三編(延春閣),第四冊,頁1555-1557&*故宮書畫錄(卷三),第一冊,頁38-40&*趙孟頫行楷書。大抵自二王出。參以李北海。益以天姿絕世。融鑄自成面目。生平選筆選紙皆極精嚴。此七札原裝為一冊。紙皆砑製極精。兼以筆墨合手。故無一不精妙絕倫也。孟頫用筆通婉圓成。盡筆之性以為己用。無一筆不提頓。無一筆不貫通。豈特一代豪雄。抑亦千載罕覯。第以修飾稍過。人亦或有譏之者耳。&* Chao Meng-fu’s (1254-1322) running and regular scripts were largely based on the calligraphy of Wang hsi-chih (321-379) and Wang Hsien-chih (344-388). Together with the influence of Li Yung’s (678-747) calligraphy and his own natrual gifts, Chao Meng-fu created his own calligraphic style. Throughout his life, Chao Meng-fu selected the finest brushes and paper for writing. These seven letters originally were mounted as an album. The high grade paper, ink and brush, together with the artist’s own ability resulted in works of excelling quality. From beginning to end, all of Chao Meng-fu’s brush strokes are imbued with great strength. &*1.何傳馨,〈趙孟頫的側影 — 院藏〈七札〉冊觀後〉,《故宮文物月刊》,第264期(2005年3月),頁20-30。