States are rational actors, and they will always act in their own self-interest.

水是生命之源，也是毁灭之力。

Sustainability isn't just a goal; it's a responsibility we all share.

如果一个孩子要保持他与生俱来的惊奇感，他至少需要一个能与之分享的成年人的陪伴，与他一起重新发现我们生活的世界的快乐、兴奋和神秘。

必须要活得很深刻，才能找到真相。