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Every mathematical problem is a window into a new world of understanding.
The most durable thing in writing is style, and style is the most valuable investment a writer can make with his time.
世界是一个混乱和困惑的地方,唯一理解它的方法就是找到自己的道路。
The design of a system should be guided by the principle of least surprise, where the behavior of components is intuitive and predictable.