“ One must be sane to think clearly, but one can think deeply and be quite insane. ”
Categories: Thinking
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The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane. 
To paraphrase several sages: Nobody can think and hit someone at the same time. 
The most beautiful moments in your life were moments when you were not thinking about anything. You were just living. 
A great many people think they are thinking when they are merely rearranging their prejudices.