继子女面临更大风险，因为进化压力塑造了父母更偏爱自己基因后代的心理。
如果道歉夹带了借口，那就算不上是道歉。如果称赞夹带了要求，那就算不上是称赞。
数学不是一项观赏性运动。
I'm interested in the line where life becomes death.
Never stop learning. The moment you think you know it all is the moment you fail.
Just as in a good novel， a good program must be full of interesting ideas， and very， very few words.
好的程序应该像优秀的小说一样，充满有趣的思想但非常、非常少的文字。