逻辑学研究不仅仅是关于推理规则，更是关于思想结构本身。

The United States has foolishly given Pakistan more than 33 billion dollars in aid over the last 15 years, and they have given us nothing but lies & deceit, thinking of our leaders as fools. They give safe haven to the terrorists we hunt in Afghanistan, with little help. No more!

The chemical industry is the backbone of modern civilization, and we must treat it with the respect and responsibility it deserves.

目的可以证明手段的正当性，只要存在某种能证明目的正当性的东西。