不要等待别人的许可去做出改变。
Don't wait for permission to make a difference.
The man who has begun to live more seriously within begins to live more simply without.
无论大自然为人类准备了什么，无论多么不愉快，人类都必须接受，因为无知从来都不比知识更好。
爱斯基摩人有52个名字来称呼雪，因为雪对他们很重要：爱也应该有同样多的名字。
The true cost of overfishing isn't measured in dollars, but in empty nets and broken communities.
The ultimate test of any economic theory is whether it improves real-world decisions.
The individual is not accountable to society for his actions in so far as these concern the interests of no person but himself.