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The way we see things is affected by what we know or what we believe.
今天很好,今天很有趣。明天又是新的一天。
创新是在这个竞争激烈的世界中生存的唯一途径。
Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.