"A good book is a magic gateway to a world of imagination."
Safety must always come first in mining operations.
I use text and image together because words alone are not enough.
解决贫困的根本方法不是金钱，而是知识。
实现明天的唯一限制将是我们今天的怀疑。
真相往往隐藏在最小的细节中。