What the less advanced tribes did from necessity,the more prosperous did from ambition and the military spirit ,and after a time the whole of these city-communities were either conquerors or conquered.

• 落后的部落这样是为生活所迫，而较富裕的部落则是由于野心和尚武精神。过了一段时间以后，所有的城邦不是成为征服者就是被别人征服。