“There is little to be said of seniority. It is evident that when men grow older they acquire experience, unless they are completely idle, stupid, or too obstinate to learn anything. But there are many types of old men, and no one has ever maintained that, in order to pick out the best of the, it is enough to look at their birth certificates. Therefore appointments have to be made.”
Un Art de Vivre (The Art of Living) (1939), The Art of Leadership
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André Maurois 202
French writer 1885–1967Related quotes
Prayer and the Art of Volkswagen Maintenance (2000, Harvest House Publishers)

“I grow old ever learning many things.”
Plutarch, Solon, ch. 31; translation by Bernadotte Perrin. http://www.perseus.tufts.edu/cgi-bin/ptext?lookup=Plut.+Sol.+31.1
Variant translation: As I grow older, I constantly learn more.

“We learn from experience that men never learn anything from experience.”

“Old men are always young enough to learn.”
Variant translation: Learning is ever in the freshness of its youth, even for the old.
Source: Oresteia (458 BC), Agamemnon, line 584 ( line 583 of Richmond Lattimore's translation http://books.google.com/books?id=3duN7nP3OQYC&q=%22old+men+are+always+young+enough+to+learn%22&pg=PA40#v=onepage)

"On Medicine, (c. 1020) http://www.fordham.edu/halsall/source/1020Avicenna-Medicine.html
Context: The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes. Therefore in medicine we ought to know the causes of sickness and health. And because health and sickness and their causes are sometimes manifest, and sometimes hidden and not to be comprehended except by the study of symptoms, we must also study the symptoms of health and disease. Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials. Of these causes there are four kinds: material, efficient, formal, and final.

Quoted, The Beautiful and Damned (1922)

Address to the Women's Canadian Club, Montreal, Quebec, March 26, 1958
Speaking Of Canada - (1959)