States are inherently aggressive and expansionist because they exist in an anarchic international system where there is no higher authority to keep them in check.

历史是我们再也听不到的声音的回响。

出自汉·桓宽《盐铁论·执务》。阜，土山。土积得多便会成山，水积得多便成江河。此以积土成山、积水成河为喻，说明积少成多、凡事要从一点一滴做起的道理。