To express the same idea in still another way, I think that human knowledge is essentially active.JQuote by Jean Piaget about idea, knowledge, human imperfections
Knowing reality means constructing systems of transformations that correspond, more or less adequately, to reality.JQuote by Jean Piaget about reality
Scientific knowledge is in perpetual evolution; it finds itself changed from one day to the next.JQuote by Jean Piaget about knowledge, evolution, day
Intelligence is what you use when you do not know what to do.JQuote by Jean Piaget about intelligence, use, contentment
In a desperate situation, only courage and intelligence can help you.JQuote by Jean Piaget about despair, intelligence, courage, help, contentment