Sustainability isn't an option; it's a necessity for survival.

历史学家是向后看的先知。

Education is the foundation upon which sustainable forestry is built.

成为一体，团结一致是伟大的。但尊重差异的权利可能更伟大。

写作是为无形的东西赋予形状。

We can distinguish the blurred shapes and colours we see at a distance only because of the capacities of our eyes.

出生就是在一座岛屿上遇难。