when the sons grow to man's estate, they disregard a sober and well-ordered life, and rush headlong into disorderly and low vices; then at the last the parents are sorry they have neglected their education, bemoaning bitterly when it is too late their sons' debasement. For some of them keep flatterers and parasites in their retinue—an accursed set of wretches, the defilers and pest of youth
 Plutarch, Moralia (c. 100 AD). copy citation

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Author Plutarch
Source Moralia
Topic youth education
Date c. 100 AD
Language English
Reference
Note Translated by Arthur Richard Shilleto
Weblink http://www.gutenberg.org/files/23639/23639-h/23639-h.htm

Context

“Aristippus answered, "You shall have two slaves then, your son and the slave you buy."13 And is it not altogether strange that you accustom your son to take his food in his right hand, and chide him if he 7offers his left, whereas you care very little about his hearing good and sound discourses? I will tell you what happens to such admirable fathers, when they have educated and brought up their sons so badly: when the sons grow to man's estate, they disregard a sober and well-ordered life, and rush headlong into disorderly and low vices; then at the last the parents are sorry they have neglected their education, bemoaning bitterly when it is too late their sons' debasement. For some of them keep flatterers and parasites in their retinue—an accursed set of wretches, the defilers and pest of youth; others keep mistresses and common prostitutes, wanton and costly; others waste their money in eating; others come to grief through dice and revelling; some even go in for bolder profligacy, being whoremongers and defilers of the marriage bed,14 who would madly pursue their darling vice if it cost them their lives.” source