The only limit to our realization of tomorrow is our doubts of today.
现实不仅是能够被复制的东西,而且是总是已经被复制的东西。
每个人都必须有一个改变他们的想法,或一本书,或一个词,或一个时刻;如果没有,他们的生命就被浪费了。
The mining industry has a responsibility to leave communities better than we found them.