知识只有在应用时才有用。
The true cost of coal must account for both its immediate value and its long-term impact on communities and ecosystems.
循环经济是我们行业唯一可行的未来。
天才和愚蠢之间的区别就是天才有它的限制。
If we farm the sea as we farm the land, we must learn from past mistakes.
The best way to predict the future is to invent it.