These walls are kind of funny like that. First you hate them, then you get used to them. Enough time passed, get so you depend on them. That's institution alized. 
监狱里的高墙实在是很有趣。刚入狱的时候,你痛恨周围的高墙;慢慢地,你习惯了生活在其中;最终你会发现自己不得不依靠它而生存。这就是体制化。
To forget is to betray; to remember is to resist.
The essence of computational complexity is to understand the limits of what can be computed efficiently.
暂时的东西有时比永久的东西更有力量。
过去是幽灵,未来是梦,我们拥有的只有现在。