The true cost of coal must account for both its immediate value and its long-term impact on communities and ecosystems.

文字是唯一永恒的东西；其他一切都会消亡。

Experience is simply the name we give our mistakes.

The only way to understand painting is to look at it for a long time.

"No one can build you the bridge on which you, and only you, must cross the river of life."

知识、美德和虔诚的种子自然植入我们心中。

任何圆的面积等于一个直角三角形，其中一条直角边等于半径，另一条等于圆的周长。