“舞台上的魔术师都知道：把那些廉价的把戏收集起来就足够制造出‘魔术’，满足人们的需要了。”Dennett博士写道，“大自然也是这么做的，她可是人类最伟大的魔术师。”
"Stage magicians know that a collection of cheap tricks will often suffice to produce 'magic,'" Dr. Dennett has written, "and so does Mother Nature, the ultimate gadgeteer."
每一个谜题，把戏和题目都可以在家庭中安全重现，材料廉价，指示清晰，每个活动都容易操作。
Every puzzle, trick, and project can be executed with safe, inexpensive materials found around the home and the lively step-by-step instructions make each activity easy to follow.
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