Sustainable forestry is not an option; it's our responsibility.
任何白痴都能面对危机；磨损人的是日复一日的生活。
A culture of continuous learning is the foundation of long-term success.
最伟大的发现来自于提出最简单的问题。
一个好的经济学家必须既是科学家，又是人文主义者。
It has done me good, because of the color of the wheat fields. Go and look again at the roses. You will understand now that yours is unique in all the world。