Creative activity is a type of learning process where the teacher and pupil are located in the same individual.
~ Arthur Koestler

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The prerequisite of originality is the art of forgetting, at the proper moment, what we know.
~ Arthur Koestler

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The principal mark of genius is not perfection but originality, the opening of new frontiers.
~ Arthur Koestler

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The evolution of the brain not only overshot the needs of prehistoric man, it is the only example of evolution providing a species with an organ which it does not know how to use.
~ Arthur Koestler

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