The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

译文：如果一个人富贵了，就会有人接近巴结他；如果一个人变得贫贱了，原来与他亲近的人就会离开他。

书是一个永远不会让你失望的朋友。

Now some advantages particular to this age are not to be denied. Boredom seems to have been vanquished. There is always something to do, but hasn’t this translated into a perpetual distraction in our lives.

可持续性不仅仅是一个目标，更是我们对后代的责任。

The best way to find out if you can trust somebody is to trust them.