The essence of computational complexity is to understand the limits of what can be computed efficiently.
计算复杂性的本质是理解什么可以被有效地计算的极限。
Books say: She did this because. Life says: She did this. Books are where things are explained to you; life is where things aren't.
我不为电台做音乐，我为灵魂而作。
The most important thing in a database is the schema.
"The beauty of literature is that it allows us to live a thousand lives in one."
"The words we use are like the clothes we wear. They can make us look smart or silly, kind or cruel, strong or weak."
你做得越多，学到的就越多。你学到的越多，你能做的就越多。
The world is what it is; men who are nothing, who allow themselves to become nothing, have no place in it.
如果你问一个经济学家，什么驱动着经济增长，他定会提出一些慎重的意见作为答复——农业机械化、大规模生产，诸如此类。但问题是，我们的社会组织不是靠这些事情建立起来的。