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"Scientific thought, then, is not momentary; it is not a static instance; it is a process."
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"Maybe where there's clarity of air, there's clarity of thought."
Explore more quotes by Jean Piaget
"Our problem, from the point of view of psychology and from the point of view of genetic epistemology, is to explain how the transition is made from a lower level of knowledge to a level that is judged to be higher."
"The self thus becomes aware of itself, at least in its practical action, and discovers itself as a cause among other causes and as an object subject to the same laws as other objects."
"In other words, knowledge of the external world begins with an immediate utilisation of things, whereas knowledge of self is stopped by this purely practical and utilitarian contact."
"This means that no single logic is strong enough to support the total construction of human knowledge."
"The current state of knowledge is a moment in history, changing just as rapidly as the state of knowledge in the past has ever changed and, in many instances, more rapidly."
"To express the same idea in still another way, I think that human knowledge is essentially active."
"Reflective abstraction, however, is based not on individual actions but on coordinated actions."
"Logical positivists have never taken psychology into account in their epistemology, but they affirm that logical beings and mathematical beings are nothing but linguistic structures."
"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."
"I have always detested any departure from reality, an attitude which I relate to my mother's poor mental health."
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