126 Quotes by Jean Piaget

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.

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.

Knowing reality means constructing systems of transformations that correspond, more or less adequately, to reality.

In genetic epistemology, as in developmental psychology, too, there is never an absolute beginning.

Scientific thought, then, is not momentary; it is not a static instance; it is a process.

This means that no single logic is strong enough to support the total construction of human knowledge.

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.

Every acquisition of accommodation becomes material for assimilation, but assimilation always resists new accommodations.