To Understand Is To Invent.

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

The Self Thus Becomes Aware Of Itself, At Least In Its Practical Action, And Discovers Itself As A Cause Among Other Causes And As An Object Subject To The Same Laws As Other Objects.

I Could Not Think Without Writing.

Every Acquisition Of Accommodation Becomes Material For Assimilation, But Assimilation Always Resists New Accommodations.

At One Time, Many Philosophers Held That Faultless "laws Of Thought" Were Somehow Inherent, A Priori, In The Very Nature Of Mind. This Belief Was Twice Shaken In The Past Century; First When Russell And His Successors Showed How The Logic Men Employ Can Be Defective, And Later When Freud And Piaget Started To Reveal The Tortuous Ways In Which Our Minds Actually Develop.