We must be free not because we claim freedom, but because we practice it.

The United States, in their expansive capacity, are capable of containing within their limits the whole population of the earth.

幸福是一种选择，而不是结果。

Beauty is not the goal of art, but its byproduct.

可持续性不是一个流行词，而是矿业前进的唯一道路。