For the inexperience of youth requires the practical wisdom of age to strengthen and direct it.
 Marcus Tullius Cicero, On Duties (44 BC). copy citation

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Author Marcus Tullius Cicero
Source On Duties
Topic wisdom youth
Date 44 BC
Language English
Reference
Note Translated by Walter Miller
Weblink http://www.constitution.org/rom/de_officiis.htm

Context

“Since, too, the duties that properly belong to different times of life are not the same, but some belong to the young, others to those more advanced in years, a word must be said on this distinction also. It is, then, the duty of a young man to show deference to his elders and to attach himself to the best and most approved of them, so as to receive the benefit of their counsel and influence. For the inexperience of youth requires the practical wisdom of age to strengthen and direct it. And this time of life is above all to be protected against sensuality and trained to toil and endurance of both mind and body, so as to be strong for active duty in military and civil service. And even when they wish to relax their minds and give themselves up to enjoyment they should beware of excesses and bear in mind the rules of modesty.” source