《三国志·蜀书·杜周杜许孟来尹李谯郤》
伏愚子说: 我听说处于强大且没有什么忧患的国家经常很怠慢，弱小而有烦忧的国家，经常想着如何将事情做好。怠慢则容易生发祸乱，想着把事情做好则国家太平，这是常理呀。
伏愚子曰： 吾闻之，处大无患者恒多慢，处小有忧者恒思善；多慢则生乱，思善则生治，理之常也。
Fu Yizi said: I heard that countries that are strong and have no worries are often very slow, and countries that are weak and have troubles often think about how to do things well. Slackness can easily lead to chaos, and thinking about doing things well can bring peace to the country. This is common sense.