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问题
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问题的发现
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从感知没有被满足的期望开始，到问题被完整定义为止。往往人们感知一个问题，是由于在活动或者研究中，发现有些期望没有和现状符合，并开始寻找原因。_NEWLINE_对于“实践出真知”的论点而言，可以解析为，实践发现问题，在解决问题的过程中获得知识。那么实践是发现期望和现实差异的前提，期望是导致差异的必要条件，而期望和现实差异是感知问题的直接诱因。
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关于问题的言论
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“The world we have made as a result of the level of thinking we have done thus far creates problems we cannot solve at the same level of thinking at which we created them._NEWLINE_”_NEWLINE_Albert Einstein_NEWLINE_“It's not that I'm so smart, it's just that I stay with problems longer.”_NEWLINE_Albert Einstein_NEWLINE_“The important thing is not to stop questioning.”_NEWLINE_Albert Einstein