我们不是从祖先那里继承地球；我们是从子孙那里借来的。这一原则指导着我们迈出的每一步。
We don't inherit the earth from our ancestors; we borrow it from our children. This principle guides every step we take.
The most sustainable forest is one that's valued by the community that depends on it.
民族的团结是力量的源泉。
The only person you should try to be better than is the person you were yesterday.
学习数学的唯一方法就是做数学。
在展示自己时，请记住，印象非常重要。整体形象必须毫无瑕疵。其他人会通过各种线索和端倪，判断你的真实面貌。所以，要重诺守时，要真实诚信，要准备充分。