The Essence Of Belief Is The Establishment

I Define A Sign As Anything Which Is So Determined By Something Else, Called Its Object, And So Determines An Effect Upon A Person, Which Effect I Call Its Interpretant, That The Latter Is Thereby Mediately Determined By The Former.

Do You Call It Doubting To Write Down On A Piece Of Paper That You Doubt? If So, Doubt Has Nothing To Do With Any Serious Business. But Do Not Make Believe; If Pedantry Has Not Eaten All The Reality Out Of You, Recognize, As You Must, That There Is Much That You Do Not Doubt, In The Least. Now That Which You Do Not At All Doubt, You Must And Do Regard As Infallible, Absolute Truth.

It Has Never Been In My Power To Study Anything, Mathematics, Ethics, Metaphysics, Gravitation, Thermodynamics, Optics, Chemistry, Comparative Anatomy, Astronomy, Psychology, Phonetics, Economics, The History Of Science, Whist, Men And Women, Wine, Metrology, Except As A Study Of Semeiotic .

Theoretically, I Grant You, There Is No Possibility Of Error In Necessary Reasoning. But To Speak Thus "theoretically," Is To Uselanguage In A Pickwickian Sense. In Practice, And In Fact, Mathematics Is Not Exempt From That Liability To Error That Affects Everything That Man Does.

In All The Works On Pedagogy That Ever I Read — And They Have Been Many, Big, And Heavy — I Don't Remember That Any One Has Advocated A System Of Teaching By Practical Jokes, Mostly Cruel. That, However, Describes The Method Of Our Great Teacher, Experience.