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"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."
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"Eternity is a mere moment, just long enough for a joke."

"The value of time is immeasurable."

"Worrying about what happened on Monday, or, what might happen on Wednesday, is at the expense of one's Tuesday."

"Don't equate effective living to being busy."

"People wish to learn to swim and at the same time to keep one foot on the ground."

"Time passes..and a billion lives are affected in ways we'll never know."
Explore more quotes by Jean Piaget


"To express the same idea in still another way, I think that human knowledge is essentially active."


"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."


"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."


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


"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."


"The principle goal of education in the schools should be creating men and women who are capable of doing new things, not simply repeating what other generations have done."


"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."


"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."


"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."


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