埃尔德什差异问题让我着迷，因为它陈述起来如此简单，但含义却如此深刻。

Collaboration is key—governments, businesses, and communities must work together for sustainable forests.

想得大，想得远。

我们花了很多时间教领导者该做什么，却没有花足够的时间教他们该停止什么。

We are all cut from the same genetic cloth, and that cloth was woven in Africa.