The true test of a civilization is how it treats its weakest members.
一个文明的真正考验在于它如何对待最弱小的成员。
历史是对于未来最好的老师。历史书中的答案价值万金 。
The study of the mind must be strictly empirical.
Leadership means making tough decisions today that will benefit everyone tomorrow.
Every challenge in mining is an opportunity to redefine our future.