煤炭的未来不在于产量，而在于通过技术和可持续性创造价值。

我不害怕脆弱，因为真正的音乐源于此。

The strength of a political system lies in its ability to adapt to changing circumstances and to incorporate new ideas and practices.

唯有勇者配得上美人。

The best science often comes from asking the simplest questions.

数学家是能在定理间找到类比的人；更好的数学家能在理论间看到类比；而最优秀的数学家能注意到类比之间的类比。