在计算复杂性的研究中，我们常常发现可能的边界是由我们想象力的极限定义的。
"In the study of computational complexity, we often find that the boundaries of what is possible are defined by the limits of our imagination."
——记者：你认为你是美国人还是中国人呢？
The only defense against the world is a thorough knowledge of it.
"The function of thought is to guide action."
The only time you should look down on someone is when you're helping them up.
"The past is always tense, the future perfect."
The only way to be a writer is to write.