煤炭不仅仅是一种商品，它是对美国未来的承诺。

建筑的力量在于它能够感动我们，触动我们。

The secret of change is to focus all of your energy, not on fighting the old, but on building the new.

"El silencio es el espacio donde las palabras encuentran su verdadero significado."

The purpose of government is to help those who cannot help themselves.