The study of computational complexity is not just about classifying problems; it is about understanding the nature of computation itself.
As to the gods, I have no means of knowing either that they exist or that they do not exist. For many are the obstacles that impede knowledge, both the obscurity of the question and the shortness of human life.
读一本好书,就是和许多高尚的人谈话。
"I’m the one I should love in this world."
"The act of writing is an act of resistance against oblivion."