Sustainability is the future of quarrying, and we must act now.
"To read is to travel without moving an inch."
不学习历史的人注定要重复错误。
The secret of change is to focus all of your energy,not on fighting the old,but on building the new.
改变的秘诀是集中你的所有能力,不是摧毁旧的,而是建造新的。
I am following Nature without being able to grasp her...