Jean Piaget

The first type of abstraction from objects I shall refer to as simple abstraction, but the second type I shall call reflective abstraction, using this term in a double sense.
The first type of abstraction from objects I shall refer to as simple abstraction, but the second type I shall call reflective abstraction, using this term in a double sense.
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These are some quotes by Swiss author Jean Piaget Psychologist, who lived between August 9, 1896 and September 16, 1980.


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