"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

心智是一个计算器官的系统，通过自然选择设计来解决我们祖先在觅食生活方式中面临的各种问题。

I don’t like to be told what to do.

译文：立下难以实现的志向，才能吃别人不可能吃的苦，做别人不能做的事，千秋功业，才有得指望；对人对事若发现错误而不忍心去指责、纠正，那么必然会因为不忍心去说而造成祸害。

国家是理性的行为者，在无政府状态的国际体系中寻求最大化其权力和安全。

If you're not improving, you're falling behind—especially in an industry as dynamic as animal husbandry.