出自汉·桓宽《盐铁论·险固》。则，就。有所准备就能先发制人，没有准备就只能受制于人，处处被动挨打。这句话言做事处世“有备无患”的重要性。
The future is a promise we may not live to see.
Always be prepared. The more you know, the less you carry.
The only limit to your impact is your imagination and commitment.
Heard melodies are sweet, but those unheard are sweeter.
解释：放开人民的嘴，让他们有话直说，政事的善恶好坏就都可以清楚。