私下批评，公开表扬。

只有不断学习，才能在激烈的竞争中立于不败之地。

译文：每个人的善、恶程度不同，本性与外表也是不一致的。有的人外貌温良却行为奸诈，有的人前恭谦却心怀狡诈，有的人看上去很勇敢而实际上却很怯懦，有的人似乎已竭尽全力但实际上却不忠诚。

I don't want to be in the bottom quartile, but I don't want to be in the top quartile either. I want to be in the second quartile.

让我告诉你我成功的秘诀。我的力量仅仅在于我的坚持不懈。

煤炭的未来在于平衡环境责任与能源需求。

Sun don't shine forever, but as long as it's here then we might as well shine together.