All wealth is the product of labor.

Success in this industry is measured not just in tons produced, but in communities strengthened and environments protected.

诗人是一个种下一棵树然后坐在它的树荫下的人。

Let us be grateful to people who make us happy, they are the charming gardeners who make our souls blossom.

那些疯狂到认为自己能改变世界的人，才能真正改变世界。

过去从未消逝，它甚至从未成为过去。