What We See Changes What We Know.

As Far As The Game Of Marbles Is Concerned, There Is Therefore No Contradiction Between The Egocentric Practice Of Games And The Mystical Respect Entertained For Rules. This Respect Is The Mark Of A Mentality Fashioned, Not By Free Cooperation Between Equals, But By Adult Constraint.

Everytime We Teach A Child Something, We Prevent Him From Inventing It Himself.

The Essential Functions Of The Mind Consist In Understanding And In Inventing, In Other Words, In Building Up Structures By Structuring Reality.

The More The Schemata Are Differentiated, The Smaller The Gap Between The New And The Familiar Becomes, So That Novelty, Instead Of Constituting An Annoyance Avoided By The Subject, Becomes A Problem And Invites Searching.

Reflective Abstraction, However, Is Based Not On Individual Actions But On Coordinated Actions.