那些愿意为了安全而放弃自由的人，既得不到安全，也得不到自由。

The natural price of labor is that price which is necessary to enable the laborers, one with another, to subsist and to perpetuate their race, without either increase or diminution.

讽刺的真正目的是通过纠正来改善恶习。

Technology in forestry should serve sustainability, not just efficiency.

时间存在的意义就是任何事都不可能立刻实现。

代数簇的算术是窥探数学隐藏结构的窗口。

最重要的是通过给予人们超出他们当前能力的任务来发展他们的能力。