No society can surely be flourishing and happy， of which the far greater part of the members are poor and miserable.

The difference between ordinary and extraordinary is that little extra.

我们正处于历史上一个独特的阶段。我们从未如此清楚地意识到我们对地球所做的一切，也从未有过能力对此采取行动。

The metaphor is the poet’s way of seeing the world differently.

Stay hungry, stay foolish.

经济学家必须贪婪地收集事实；但事实本身并不能说明什么。