In Genetic Epistemology, As In Developmental Psychology,

It Is With Children That We Have The Best Chance Of Studying The Development Of Logical Knowledge, Mathematical Knowledge, Physical Knowledge, And So Forth.

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 Most Developed Science Remains A Continual Becoming

To Express The Same Idea In Still Another Way, I Think That Human Knowledge Is Essentially Active.

The Child Who Defines A Lie As Being A "naughty Word" Knows Perfectly Well That Lying Consists In Not Speaking The Truth. He Is Not, Therefore, Mistaking One Thing For Another, He Is Simply Identifying Them One With Another By What Seems To Us A Quaint Extension Of The Word "lie".