The Republic by Plato
The Republic by Plato Yes, said Adeimantus, they give us plenty of them, and their complaints are so like themselves.
And you know, I said, that the old servants also, who are supposed to be attached to the family, from time to time talk privately in the same strain to the son; and if they see any one who owes money to his father, or is wronging him in any way, and he fails to prosecute them, they tell the youth that when he grows up he must retaliate upon people of this sort, and be more of a man than his father. He has only to walk abroad and he hears and sees the same sort of thing: those who do their own business in the city are called simpletons, and held in no esteem, while the busy-bodies are honoured and applauded. The result is that the young man, hearing and seeing all these things—hearing, too, the words of his father, and having a nearer view of his way of life, and making comparisons of him and others—is drawn opposite ways: while his father is watering and nourishing the rational principle in his soul, the others are encouraging the passionate and appetitive; and he being not originally of a bad nature, but having kept bad company, is at last brought by their joint influence to a middle point, and gives up the kingdom which is within him to the middle principle of contentiousness and passion, and becomes arrogant and ambitious.
You seem to me to have described his origin perfectly.