Logic and mathematics are nothing but specialised linguistic structures.

quote by Jean Piaget
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Scientific thought, then, is not momentary; it is not a static instance; it is a process.

quote by Jean Piaget
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Reflective abstraction, however, is based not on individual actions but on coordinated actions.

quote by Jean Piaget
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Scientific knowledge is in perpetual evolution; it finds itself changed from one day to the next.

quote by Jean Piaget
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To express the same idea in still another way, I think that human knowledge is essentially active.

quote by Jean Piaget
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In genetic epistemology, as in developmental psychology, too, there is never an absolute beginning.

quote by Jean Piaget
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This means that no single logic is strong enough to support the total construction of human knowledge.

quote by Jean Piaget
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I have always detested any departure from reality, an attitude which I relate to my mother's poor mental health.

quote by Jean Piaget
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Knowing reality means constructing systems of transformations that correspond, more or less adequately, to reality.

quote by Jean Piaget
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Every acquisition of accommodation becomes material for assimilation, but assimilation always resists new accommodations.

quote by Jean Piaget
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