抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
The total amount of suffering per year in the natural world is beyond all decent contemplation.
You don't have to have a reason to love somebody.
一个好故事应该既让舒适者不安，又让不安者舒适。
爱因斯坦当他说“上帝并不掷骰子”的时候是错误的。思考到黑洞的因素，上帝不仅仅仅玩骰子，他还经常把他们扔到我们看不到的地方来使我们迷惑。
世界上最美好和最美丽的东西是看不见甚至摸不着的——它们必须用心去感受。
The spread of liberal democracy around the world is not inevitable, but it is the most likely outcome.
The secret of improved plant breeding, apart from scientific knowledge, is love.