The Republic by Plato Part 2 Page 5

the voices of Thrasymachus and myriads of others dinning in my ears; and, on the other hand, I have never yet heard the superiority of justice to injustice maintained by any one in a satisfactory way. I want to hear justice praised in respect of itself; then I shall be satisfied, and you are the person from whom I think that I am most likely to hear this; and therefore I will praise the unjust life to the utmost of my power, and my manner of speaking will indicate the manner in which I desire to hear you too praising justice and censuring injustice.

Will you say whether you approve of my proposal?

Indeed I do; nor can I imagine any theme about which a man of sense would oftener wish to converse.

I am delighted, he replied, to hear you say so, and shall