Scientific knowledge is in perpetual evolution; it finds itself changed from one day to the next. Votes: 23
Reflective abstraction, however, is based not on individual actions but on coordinated actions. Votes: 10
In genetic epistemology, as in developmental psychology, too, there is never an absolute beginning. Votes: 9
To express the same idea in still another way, I think that human knowledge is essentially active. Votes: 4
When you teach a child something you take away forever his chance of discovering it for himself. Votes: 0
Play is the work of childhood. Votes: 0
Experience precedes understanding. Votes: 0
To understand is to invent. Votes: 0
I could not think without writing. Votes: 0