Coal will remain a vital energy source, but only if we evolve with the times.

"Art is the only refuge from the chaos of the world, a place where we can find meaning and beauty."

数学的艺术在于发现包含所有普遍性萌芽的特殊案例。

Don't cry to quit, cry to keep going.

爱是因为爱本身。爱不需要理由。