In default of the pure and sacred love that fills a life, ambition may become something very noble, subduing to itself every thought of personal interest, and setting as the end—the greatness, not of one man, but of a whole nation.
But the student had not yet reached the time of life when a man surveys the whole course of existence and judges it soberly.
 Honoré de Balzac, Father Goriot (1835). copy citation

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Author Honoré de Balzac
Source Father Goriot
Topic greatness ambition
Date 1835
Language English
Reference
Note Translated by Ellen Marriage
Weblink http://www.gutenberg.org/files/1237/1237-h/1237-h.htm

Context

“the burning ambition of conquest possessed him already; perhaps he was conscious of his powers, but as yet he knew neither the end to which his ambition was to be directed, nor the means of attaining it. In default of the pure and sacred love that fills a life, ambition may become something very noble, subduing to itself every thought of personal interest, and setting as the end—the greatness, not of one man, but of a whole nation. But the student had not yet reached the time of life when a man surveys the whole course of existence and judges it soberly. Hitherto he had scarcely so much as shaken off the spell of the fresh and gracious influences that envelop a childhood in the country, like green leaves and grass. He had hesitated on the brink of the Parisian Rubicon, and in spite of the prickings of ambition, he still clung to a lingering tradition of an old ideal—the peaceful life of the noble in his chateau.” source