看着容易，要学会就很难；千万不要把容易得到的东西看得普通，就不知道珍惜。

In a way, I've got some bad news, particularly to anybody who's come to Oxford from abroad. There's a real problem with snobbery, because sometimes people from outside the U.K. imagine that snobbery is a distinctively U.K. phenomenon, fixated on country houses and titles. The bad news is that's not true. Snobbery is a global phenomenon; we area global organization, this is a global phenomenon. What is a snob? A snob is anybody who takes a small part of you, and uses that to come to a complete vision of who you are. That is snobbery.

森林的真正价值不是用板英尺来衡量的，而是用生物多样性来衡量的。

Innovation in natural gas extraction is essential for meeting the world's growing energy demands.

Innovation in fisheries management must balance economic needs with ecological responsibility.