采石场运营中的每个挑战都是创新和改进的机会。
那些不牢记过去的人,注定要重复过去发生的事。
Innovation is the ability to see change as an opportunity, not a threat.
Freedom is never voluntarily given by the oppressor; it must be demanded by the oppressed.
The way we see things is affected by what we know or what we believe.
I've always believed that if you put in the work, the results will come.
The best time to plant a tree was 25 years ago. The second best time is today.