伯納德•貝倫森（Bernard Berenson,1865-1959）―傳奇的美國藝術鑑賞家，有著藝術史學家、 評論家與藝術顧問等多重身份。本研究從歷史、內容分析法觀察整個鍍金時代帶給學者的影響， 再分析貝倫森所推崇的收藏品鑑定準則，如何重塑美國人對文藝復興時期藝術的理解。最後從他 的日記與相關書信，觀察這名藝術權威的心境游移和藝術交易上的道德問題，檢視其富裕卻迷惘 的人生，並多層次的重新評價。最終研究發現，富裕的大環境雖然帶給學者豐富的金援與資源， 卻也伴隨收取高額佣金衍生的代價，讓貝倫森無可避免的陷入了一種隨時失衡的狀態：學者信用、 鑑賞家名望和有利可圖的藝術顧問之中。

Bernard Berenson (1865-1959), a legendary American connoisseur, has multiple identities as an art historian, art critic as well as art consultant. In this study, I utilize historical and content research to observe the impact of American’s Gilded era on the scholars and to analyze how American’s understanding of Renaissance art is remodeled by collection identification criteria that Berenson respected. Besides, from his diaries and related communication records, we study the art giant’s mental changes and morale issues in the field of art trades, scrutinize his life, rich but confused, and revalue it from every angels. Eventually, we make the conclusion that the surroundings, adequate and rich, provides the man with resources and funds. However, it also throws Bernard Berenson into the delimma of balancing the credit and prestige as a scholar and connoisseur as well as the benefit from his work as an art consultant.