Sustainable forestry isn't a cost—it's an investment in our future.
可持续林业不是成本，而是对我们未来的投资。
他这种聪明，别人能做到，而这种愚傻，别人便难以做到了。
永远不要在电话中回应恳求或提议。迫切性是一种伪装。
按照我们的本性行事就是美德。
The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
我们都被某些东西困扰着，无论承认与否。
地球形状的问题本质上是势理论中的一个问题。
Success is not final, failure is not fatal: It is the courage to continue that counts.