We can survive as a population only if we conserve, develop sustainably, and protect the world's resources.

We can survive as a population only if we conserve, develop sustainably, and protect the world's resources.

只有保护、可持续发展和保护世界资源，我们才能作为一个人口生存下去。

-- Silvia Cartwright 西尔维亚·卡特赖特