对于计算机代数的重要性, 作者已经在前言中做了极好地论述, 我在这里不再重复. 这里我想谈谈

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Mindful living. You've probably heard the old adage that life's too short to stuff a mushroom. But perhaps you should consider the opposite: that life's simply too short NOT to focus on the simple tasks. By slowing down and concentrating on basic things, you'll clear your mind of everything that worries you. Suggested reading: The Power of Now
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Ask yourself: When was the last time you really pushed yourself to your physical limits? Next