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The future of coal lies in balancing environmental responsibility with energy demands.

你今天感受到的痛苦將成為你明天的力量。

The key to performance is elegance, not battalions of special cases.

I am not an Athenian or a Greek，but a citizen of the world.

Move forward, move ever forward and tweet out a picture of the results. It may make you famous.

一切人類知識都源于經驗。