If Mutual Respect Does Derive From Unilateral

Play Is The Work Of Childhood.

For The Fundamental Fact Of Human Psychology Is That Society, Instead Of Remaining Almost Entirely Inside The Individual Organism As In The Case Of Animals Prompted By Their Instincts, Becomes Crystallized Almost Entirely Outside The Individuals. In Other Words, Social Rules, As Durkheim Has So Powerfully Shown, Whether They Be Linguistic, Moral, Religious, Or Legal, Etc., Cannot Be Constituted, Transmitted Or Preserved By Means Of An Internal Biological Heredity, But Only Through The External Pressure Exercised By Individuals Upon Each Other.

I Am Convinced That There Is No Sort Of Boundary Between The Living And The Mental Or Between The Biological And The Psychological. From The Moment An Organism Takes Account Of A Previous Experience And Adapts To A New Situation, That Very Much Resembles Psychology.

Children Have Real Understanding Only Of That Which They Invent Themselves, And Each Time That We Try To Teach Them Too Quickly, We Keep Them From Reinventing It Themselves.

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