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The true cost of coal must account for both its immediate value and its long-term impact on communities and ecosystems.
I think it's important to have a sense of humor about yourself and not take yourself too seriously.
You can’t connect the dots looking forward; you can only connect them looking backwards.
每个程序都有(至少)两个目的:一个目的是为它编写的,另一个不是目的。