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"Logic and mathematics are nothing but specialised linguistic structures."
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"Continuous denial of rational arguments represents a contempt of common sense."
"Most people would have probably lost count around seven. This was, Harry knewfrom his extensive reading on logic and arithmetic, the largest number that most peoplecould visually appreciate. Put seven dots on a page, and most people can take a quickglance and declare, "Seven. Switch to eight, and the majority of humanity was lost."
"Many people have said to me that I'm a mystic. I find that a bit mysterious. I just use logic and common sense for my philosophies."
"But twice-two-makes-four is for all that a most insupportable thing. Twice-two-makes-four is, in my humble opinion, nothing but a piece of impudence. Twice-two-makes-four is a farcical, dressed-up fellow who stands across your path with arms akimbo and spits at you."
Explore more quotes by Jean Piaget
"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."
"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."
"The more the schemata are differentiated, the smaller the gap between the new and the familiar becomes, so that novelty, instead of constituting an annoyance avoided by the subject, becomes a problem and invites searching."
"I have always detested any departure from reality, an attitude which I relate to my mother's poor mental health."
"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."
"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."
"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."
"In genetic epistemology, as in developmental psychology, too, there is never an absolute beginning."
"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."
"Knowing reality means constructing systems of transformations that correspond, more or less adequately, to reality."
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