We May Say That Feelings Have Two

We Cannot Begin With Complete Doubt. We Must Begin With All The Prejudices Which We Actually Have When We Enter Upon The Study Ofphilosophy. These Prejudices Are Not To Be Dispelled By A Maxim, For They Are Things Which It Does Not Occur To Us Can Be Questioned. A Person May, It Is True, In The Course Of His Studies, Find Reason To Doubt What He Began By Believing; But In That Case He Doubts Because He Has A Positive Reason For It, And Not On Account Of The Cartesian Maxim. Let Us Not Pretend To Doubt In Philosophy What We Do Not Doubt In Our Hearts.

Bad Reasoning As Well As Good Reasoning Is Possible; And This Fact Is The Foundation Of The Practical Side Of Logic.

A Pair Of Statements May Be Taken Conjunctively Or Disjunctively; For Example, "it Lightens And It Thunders ," Is Conjunctive, "it Lightens Or It Thunders" Is Disjunctive. Each Such Individual Act Of Connecting A Pair Of Statements Is A New Monad For The Mathematician .

When An Image Is Said To Be Singular, It Is Meant That It Is Absolutely Determinate In All Respects. Every Possible Character, Or The Negative Thereof, Must Be True Of Such An Image.

The Woof And Warp Of All Thought And All Research Is Symbols, And The Life Of Thought And Science Is The Life Inherent In Symbols; So That It Is Wrong To Say That A Good Language Is Important To Good Thought, Merely; For It Is The Essence Of It.