你永远不知道你的坏运气为你避免了什么更糟糕的运气。
You never know what worse luck your bad luck has saved you from.
相信有时需要勇气。
I don't believe in regrets. Everything happens for a reason.
The scientist is not a person who gives the right answers, he's one who asks the right questions.
Innovation in quarrying isn't just about new technology - it's about new thinking.