Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.

可持续性不再是可选项，而是我们前进的唯一道路。

I don't believe in eternity, but I believe in the trace.

贫穷不是性格缺陷，而是系统性困境。

整体大于部分之和。