Intelligence Is What You Use When You

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.

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

Knowing Reality Means Constructing Systems Of Transformations That Correspond, More Or Less Adequately, To Reality.

Play Is The Answer To How Anything New Comes About.

Experience Precedes Understanding.