Anabasis (Xenophon)

It was agreed that this was the most barbaric and outlandish people that they had passed through on the whole expedition, and the furthest removed from the Hellenic customs, doing in a crowd precisely what other people would prefer to do in solitude, and when alone behaving exactly as others would behave in company, talking to themselves and laughing at their own expense, standing still and then capering about, wherever they might chance to be, without rhyme or reason, as if their sole business were to show off to the rest of the world.