Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them—and then, the opportunity to choose.

书籍是灵魂的镜子，反映我们最深的恐惧和欲望。

The most sustainable building is the one that people love.

You can't change your elephant by direct force, but you can train it over time.