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Graham Wallas - From the Creativity category:
- The Art of Thought...
There are four stages of creativity: preparation, incubation, illumination, and verification. (Graham Wallas)
Graham Wallas - From the Thinking category:
The little girl had the making of a poet in her who, being told to be sure of her meaning before she spoke said, 'How can I know what I think till I see what I say?' (Graham Wallas)
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