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生活中唯一的限制是你自己设定的。
"Some infinities are bigger than other infinities."
In computer science, we often deal with problems that are easy to state but hard to solve.
有时看前来像是解决方案比问题多。仔细观瞧,今天的很多问题都是昨天的解决方案带来的结果。
The fact is that every writer creates his own precursors. His work modifies our conception of the past, as it will modify the future.