避免只限于单一议题的谈判——因为只考虑单一层面，可能无法达到「双赢」的局面。
Avoid narrowing your negotiations down to a single issue—because it just may not be possible to do a Win-Win deal in that one dimension.
这些帽子从不同的观点来检视单一议题时最能发挥效益，在使用者更换帽子时，这些架构的好处便能显现出来。
The hats are most effective when they are used one at a time to examine a subject from a number of different perspectives. The benefit of the framework comes when people swap the hats.
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