Top 46 Quotes by Jean Piaget

About Jean Piaget

These are some quotes by Swiss author Jean Piaget Psychologist, who lived between August 9, 1896 and September 16, 1980.

Play is the work of childhood.

Play is the work of childhood.

Jean Piaget

To reason logically is so to link one's propositions that each should contain the reason for the one succeeding it, and should itself be demonstrated by the one preceding it. Or at any rate, whatever the order adopted in the construction of one's own exposition, it is to demonstrate judgments by each other.

Jean Piaget

Childish egocentrism is, in its essence, an inability to differentiate between the ego and the social environment.

Childish egocentrism is, in its essence, an inability to differentiate between the ego and the social environment.

Jean Piaget

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.

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.

Jean Piaget

In other words, knowledge of the external world begins with an immediate utilisation of things, whereas knowledge of self is stopped by this purely practical and utilitarian contact.

In other words, knowledge of the external world begins with an immediate utilisation of things, whereas knowledge of self is stopped by this purely practical and utilitarian contact.

Jean Piaget

To express the same idea in still another way, I think that human knowledge is essentially active.

To express the same idea in still another way, I think that human knowledge is essentially active.

Jean Piaget

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

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

Jean Piaget

All morality consists in a system of rules, and the essence of all morality is to be sought for in the respect which the individual acquires for these rules.

All morality consists in a system of rules, and the essence of all morality is to be sought for in the respect which the individual acquires for these rules.

Jean Piaget

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

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

Jean Piaget

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

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

Jean Piaget

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