解决复杂问题的关键通常是找到正确的抽象，这种抽象可以在不丢失问题本质特征的情况下简化问题。

没有正义的自由是暴政。

It is best to act with confidence, no matter how little right you have to it.

The dairy industry is not just about producing milk; it's about sustaining communities and nurturing future generations.

都是出卖，卖给中原各国也可以，何必非要卖给越国呢？ 

地球及其周围的水域实际上必须具有其阴影所揭示的形状，因为它以完美的圆弧遮蔽了月亮。