信心不是乐观或悲观，也不是性格属性。它是对积极结果的期待。
Confidence isn't optimism or pessimism, and it's not a character attribute. It's the expectation of a positive outcome.
I believe that we are all capable of change. We can all grow and evolve.
I don't regret anything I've ever done in my life, any choice that I've made. But I'm consumed with regret for the things I didn't do.
整体的行为不能从其单独部分的行为中预测出来。
安全必须始终是采矿作业的首要任务。