He had to do them, to show he was the best. - Mary Renault

Men are not born equal in themselves, so I think it beneath a man to postulate that they are. If I thought myself as good as Sokrates I should be a fool; and if, not really believing it, I asked you to make me happy by assuring me of it, you would rightly despise me. So why should I insult my fellow-citizens by treating them as fools and cowards? A man who thinks himself as good as everyone else will be at no pains to grow better. On the other hand, I might think myself as good as Sokrates, and even persuade other fools to agree with me; but under a democracy, Sokrates is there in the Agora to prove me wrong. I want a city where I can find my equals and respect my betters, whoever they are; and where no one can tell me to swallow a lie because it is expedient, or some other man's will.

"I looked at him, tipping down the coarse wine like a man who expects to put up with worse. I felt I was looking my last at the lad I still remembered. I was right. When I saw him again, it was five years later, and not in Athens. He was tanned like the thong of a javelin, and as tough as the shaft, a soldier who looked to have been cradled in a shield; but the oddest change, I think, was to see in one always so mindful of convention that careless outlandishness you find in irregular troops of great renown; men who seem to say, "Take it or leave it, you who never went where we have been. We are the only judges of one another.

Now for the first time he realized how important it had been not to admit any alternative to the hard, decent, orthodox choice which need not be regarded as a choice at all; how important not to be different.