Donald Knuth
We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. （不成熟的优化是罪恶之源）
premature：adj. 早产的；不成熟的；比预期早的；“What I cannot create, I do not understand.”—— Richard Feynman
1. 硬件体系结构
If you were plowing a field, which would you rather use: two strong oxen or 1024 chickens?
Seymour Cray, Father of the Supercomputer（ Computer Architecture, A Quantitative Approach）
2. 代码复用
Don’t Reinvent the Wheel. —— 不要重复制造轮子；
3. 专家
所谓专家，就是在一个很小的领域里把所有错误都犯过了的人。—— 尼尔斯·波尔；
4. 数学与算法的乐趣
People who analyze algorithms have double happiness. First of all they experience the sheer beauty of elegant mathematical patterns that surround elegant computational procedures. Then they receive a practical payoff when their theories make it possible to get other jobs done more quickly and more economically. D. E. Knuth
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