以客观角度来看，这个世界确实变得更好，但同时也变得更糟。前进一步，又倒退一步，仿佛宇宙在科技进步和文化倒退间达成平衡，使人类的进展呈钟形曲线。
NP-completeness is not just a theoretical curiosity; it has profound implications for practical computing.
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.
当你对别人说“是”时，确保你没有对自己说“不”。
皮革行业必须进化，否则就有被淘汰的风险。
"The world is full of magic things, patiently waiting for our senses to grow sharper."
The mind will ever be unstable that has only prejudices to rest on.