The defining characteristic of pessimists is that they tend to believe bad events will last a long time, will undermine everything they do, and are their own fault.

采矿技术的创新不是可选项，而是决定采掘业未来的生命线。

I always try to learn from every match, win or lose.

The sun is our most powerful tool in Africa. We must learn to work with it, not against it.