The fate of those of their neighbours who had already rebelled and had been subdued was no lesson to them… — Thucydides
The fate of those of their neighbours who had already rebelled and had been subdued was no lesson to them; their own prosperity could not dissuade them from affronting danger; but blindly confident in the future, and full of hopes beyond their power though not beyond their ambition, they declared war and made their decision to prefer might to right, their attack being determined not by provocation but by the moment which seemed propitious. The truth is that great good fortune coming suddenly and unexpectedly tends to make a people insolent; in most cases it is safer for mankind to have success in reason than out of reason; and it is easier for them, one may say, to stave off adversity than to preserve prosperity.
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Ignorance produces rashness, reflection timidity
By day certainly the combatants have a clearer notion, though even then by no means of all that takes place, no one knowing much of anything that does not does not go on in his own immediate neighborhood; but in a night engagement (and this was the only one that occurred between great armies during the war) how could anyone know anything for certain?
The dead lay unburied, and each man as he recognized a friend among them shuddered with grief and horror; while the living whom they were leaving behind, wounded or sick, were to the living far more shocking than the dead, and more to be pitied than those who had perished.

