Nothing Is Born, Nothing Dies.

I Have Had A Fairly Long Life, Above All A Very Happy One, And I Think That I Shall Be Remembered With Some Regrets And Perhaps Leave Some Reputation Behind Me. What More Could I Ask? The Events In Which I Am Involved Will Probably Save Me From The Troubles Of Old Age. I Shall Die In Full Possession Of My Faculties, And That Is Another Advantage That I Should Count Among Those That I Have Enjoyed. If I Have Any Distressing Thoughts, It Is Of Not Having Done More For My Family; To Be Unable To Give Either To Them Or To You Any Token Of My Affection And My Gratitude Is To Be Poor Indeed.

As Ideas Are Preserved And Communicated By Means Of Words, It Necessarily Follows That We Cannot Improve The Language Of Any Science, Without At The Same Time Improving The Science Itself; Neither Can We, On The Other Hand, Improve A Science Without Improving The Language Or Nomenclature Which Belongs To It.

In Every Combustion There Is Disengagement Of The Matter Of Fire Or Of Light. A Body Can Burn Only In Pure Air [oxygen]. There Is No Destruction Or Decomposition Of Pure Air And The Increase In Weight Of The Body Burnt Is Exactly Equal To The Weight Of Air Destroyed Or Decomposed. The Body Burnt Changes Into An Acid By Addition Of The Substance That Increases Its Weight. Pure Air Is A Compound Of The Matter Of Fire Or Of Light With A Base. In Combustion The Burning Body Removes The Base, Which It Attracts More Strongly Than Does The Matter Of Heat, Which Appears As Flame, Heat And Light.

The Impossibility Of Separating The Nomenclature Of A Science From The Science Itself, Is Owing To This, That Every Branch Of Physical Science Must Consist Of Three Things; The Series Of Facts Which Are The Objects Of The Science, The Ideas Which Represent These Facts, And The Words By Which These Ideas Are Expressed. Like Three Impressions Of The Same Seal, The Word Ought To Produce The Idea, And The Idea To Be A Picture Of The Fact.

We Think Only Through The Medium Of Words. Languages Are True Analytical Methods. Algebra, Which Is Adapted To Its Purpose In Every Species Of Expression, In The Most Simple, Most Exact, And Best Manner Possible, Is At The Same Time A Language And An Analytical Method. The Art Of Reasoning Is Nothing More Than A Language Well Arranged.