Language Commonly Stresses Only One Side Of

Logic Can Often Be Reversed, But The Effect Does Not Precede The Cause.

Our Initial Sensory Data Are Always "first Derivatives," Statements About Differences Which Exist Among External Objects Or Statements About Changes Which Occur Either In Them Or In Our Relationship To Them. Objects And Circumstances Which Remain Absolutely Constant Relative To The Observer, Unchanged Either By His Own Movement Or By External Events, Are In General Difficult And Perhaps Always Impossible To Perceive. What We Perceive Easily Is Difference And Change And Difference Is A Relationship.

There Are No Monotone "values" In Biology.

No Organism Can Afford To Be Conscious Of Matters With Which It Could Deal At Unconscious Levels. Broadly, We Can Afford To Sink Those Sorts Of Knowledge Which Continue To Be True Regardless Of Changes In The Environment, But We Must Maintain In An Accessible Place All Those Controls Of Behavior Which Must Be Modified For Every Instance. The Economics Of The System, In Fact, Pushes Organisms Toward Sinking Into The Unconscious Those Generalities Of Relationship Which Remain Permanently True And Toward Keeping Within The Conscious The Pragmatic Of Particular Instances.

Synaptic Summation Is The Technical Term Used In Neurophysiology For Those Instances In Which Some Neuron C Is Fired Only By A Combination Of Neurons A And B.