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"It is with children that we have the best chance of studying the development of logical knowledge, mathematical knowledge, physical knowledge, and so forth."
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"Getting to know who you are is the most essential information that you can find out about yourself."

"You need to know the constituency you belong to...and that is revealed by your constituents. When your constituents are speaking in public and making of stories, your constituency can be "journalism"."

"No one knows it all. Asking questions about the things that you don't know doesn't make you unintelligent. You don't have a million years on earth to make all the mistakes in the world and learn from them. You can learn from better informed people, and save yourself the headaches that come from making too many avoidable mistakes."
Explore more quotes by 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."


"Scientific knowledge is in perpetual evolution; it finds itself changed from one day to the next."


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


"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."


"On the one hand, there are individual actions such as throwing, pushing, touching, rubbing. It is these individual actions that give rise most of the time to abstraction from objects."


"Reflective abstraction, however, is based not on individual actions but on coordinated actions."


"From this time on, the universe is built up into an aggregate of permanent objects connected by causal relations that are independent of the subject and are placed in objective space and time."


"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."


"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."
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