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.
More from Thucydides
Hope leads men to venture, and no one ever yet put himself in peril without the inward conviction that he would succeed in his design.
Permalink to quote #14 You can now, if you choose, employ your present success to advantage, so as to keep what you have got and gain honour and reputation besides, and you can avoid…
Permalink to quote #16 That which makes the splendour of the present and the glory of the future remains for ever unforgotten.
Permalink to quote #13