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"Logic and mathematics are nothing but specialised linguistic structures."
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Exlpore more Logic quotes
"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."
"It had to be a trick or you couldn't have done it."
"A thousand minus one is never a thousand."
"That which can be asserted without evidence, can be dismissed without evidence."
"I was upset. I had always believed logic was a universal weapon and now I realized how its validity depended on the way it was employed."
"Where's your common sense? None of those books agree with each other. You've been locked up here for years with a regular damned Tower of Babel. Snap out of it! The people in those books never lived. Come on now!"
Explore more quotes by Jean Piaget
"During the earliest stages the child perceives things like a solipsist who is unaware of himself as subject and is familiar only with his own actions."
"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."
"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."
"Knowing reality means constructing systems of transformations that correspond, more or less adequately, to reality."
"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."
"In genetic epistemology, as in developmental psychology, too, there is never an absolute beginning."
"Reflective abstraction, however, is based not on individual actions but on coordinated actions."
"It is with children that we have the best chance of studying the development of logical knowledge, mathematical knowledge, physical knowledge, and so forth."
"Scientific knowledge is in perpetual evolution; it finds itself changed from one day to the next."
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