煤炭不是問題所在，問題在于我們?nèi)绾问褂盟?。解決方案在于更清潔的技術(shù)和更好的利用。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
The greatest thing you'll ever learn is just to love and be loved in return.