"The only way to learn mathematics is to do mathematics."
学习数学的唯一方法就是做数学。
Energy independence is a strategic priority for any sovereign nation.
善良是一种人人都懂的语言。
Optimists tend to interpret their troubles as transient, controllable, and specific to one situation. Pessimists, on the other hand, believe that their troubles last forever, undermine everything they do, and are uncontrollable.
最好的林业实践是那些不留痕迹但改变一切的做法。
"There are two occasions when the sacred beauty of Creation becomes dazzlingly apparent, and they occur together. One is when we feel our mortal insufficiency to the world, and the other is when we feel the world's mortal insufficiency to us."
Stay true to who you are, no matter what.
那个时代，没有任何东西是拆包的，即使是人们脑子里的东西。每样东西不是储存着，就是在运送当中。
The only person you are destined to become is the person you decide to be.