The Republic by Plato
The Republic by Plato I said, You know not what you are doing in thus assailing me: What an argument are you raising about the State! Just as I thought that I had finished, and was only too glad that I had laid this question to sleep, and was reflecting how fortunate I was in your acceptance of what I then said, you ask me to begin again at the very foundation, ignorant of what a hornet's nest of words you are stirring. Now I foresaw this gathering trouble, and avoided it.
For what purpose do you conceive that we have come here, said Thrasymachus,—to look for gold, or to hear discourse?
Yes, but discourse should have a limit.
Yes, Socrates, said Glaucon, and the whole of life is the only limit which wise men assign to the hearing of such discourses. But never mind about us; take heart yourself and answer the question in your own way: What sort of community of women and children is this which is to prevail among our guardians? and how shall we manage the period between birth and education, which seems to require the greatest care? Tell us how these things will be.