In teaching you cannot see the fruit of a day's work. It is invisible and remains so, maybe for twenty years. -jacques Barzun.

教书时，你工作一天也不会看到成果。教书的成果是无形的，而且大概二十年之内都是这样。——美国文化历史学家巴顺。

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Accepting for Jacques Barzun, Marguerite Barzun. (Applause.) The 2010 National Humanities Medal to Jacques Barzun for his distinguished career as a scholar, educator, and public intellectual.

WHITEHOUSE: The 2010 National Medal of Arts and National Humanities Medal Ceremony | The White House

In the millennium year of 2000 Jacques Barzun published his chronicle of ideas in the making of the West over the past five hundred years titled From Dawn To Decadence: 500 Years of Western Cultural Life.

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