僵尸是可以想象的，这告诉我们关于意识的一些重要事情。
Zombies are conceivable, and that tells us something important about consciousness.
解释：影子的弯曲与正直是随身体而变化的，根源不在影子自身；自己的屈曲与伸直是随外物而变化的，而不在于个人的主观意志。这就是保持谦退才能使自己处世为先的道理。
The only limit to our realization of tomorrow is our doubts of today.
应对不自由世界的唯一方法，是变得如此绝对自由，以至于你的存在本身就是一种反抗。
I’m positive that in 100 years much of what I take to be true today will be proved to be wrong， maybe even embarrassingly wrong， and I try really hard to identify what it is that I am wrong about today.
Life is too short to be living someone else's dream.
