对付一个不自由的世界的唯一方法是变得如此绝对自由，以至于你的存在本身就是一种反抗。

我们这个时代的巨大挑战是创建一个既公正又可持续的世界秩序。

心智是一套信息处理机器，它们由自然选择设计来解决我们狩猎采集祖先面临的适应性问题。

"Theologians talk about a prevenient grace that precedes grace itself and allows us to accept it. I think there must also be a prevenient courage that allows us to be brave - that is, to acknowledge that there is more beauty than our eyes can bear, that precious things have been put into our hands and to do nothing to honor them is to do great harm."