A New Opinion Counts As True Just

I Originally Studied Medicine In Order To Be A Physiologist, But I Drifted Into Psychology And Philosophy From A Sort Of Fatality. I Never Had Any Philosophic Instruction, The First Lecture On Psychology I Ever Heard Being The First I Ever Gave.

Tell Him To Live By Yes And No - Yes To Everything Good, No To Everything Bad.

The Function Of Ignoring, Of Inattention, Is As Vital A Factor In Mental Progress As The Function Of Attention Itself.

In The Dim Background Of Our Mind We Know Meanwhile What We Ought To Be Doing: Getting Up, Dressing Ourselves, Answering The Person Who Has Spoken To Us, Trying To Make The Next Step In Our Reasoning. But Somehow We Cannot Start.

Plasticity, Then, In The Wide Sense Of The Word, Means The Possession Of A Structure Weak Enough To Yield To An Influence, But Strong Enough Not To Yield All At Once. Each Relatively Stable Phase Of Equilibrium In Such A Structure Is Marked By What We May Call A New Set Of Habits.