It Is Not Of The Essence Of

That Language Is An Instrument Of Human Reason, And Not Merely A Medium For The Expression Of Thought, Is A Truth Generally Admitted.

Of The Many Forms Of False Culture, A Premature Converse With Abstractions Is Perhaps The Most Likely To Prove Fatal To The Growth Of A Masculine Vigour Of Intellect.

Probability Is Expectation Founded Upon Partial Knowledge. A Perfect Acquaintance With All The Circumstances Affecting The Occurrence Of An Event Would Change Expectation Into Certainty, And Leave Nether Room Nor Demand For A Theory Of Probabilities.

I Presume That Few Who Have Paid Any Attention To The History Of The Mathematical Analysis, Will Doubt That It Has Been Developed In A Certain Order, Or That That Order Has Been, To A Great Extent, Necessary -- Being Determined, Either By Steps Of Logical Deduction, Or By The Successive Introduction Of New Ideas And Conceptions, When The Time For Their Evolution Had Arrived.

I Am Now About To Set Seriously To Work Upon Preparing For The Press An Account Of My Theory Of Logic And Probabilities Which In Its Present State I Look Upon As The Most Valuable If Not The Only Valuable Contribution That I Have Made Or Am Likely To Make To Science And The Thing By Which I Would Desire If At All To Be Remembered Hereafter.