Languages Are True Analytical Methods.

If Everything In Chemistry Is Explained In A Satisfactory Manner Without The Help Of Phlogiston, It Is By That Reason Alone Infinitely Probable That The Principle Does Not Exist; That It Is A Hypothetical Body, A Gratuitous Supposition; Indeed, It Is In The Principles Of Good Logic, Not To Multiply Bodies Without Necessity.

Diminish The Mass Of Evils That Afflict The Human Species, Increase Enjoyment And Well-being. And Even If The New Routes Opened Up Could Prolong The Average Life Of Mankind By Only A Few Hours, Or Even A Few Days, Then The Scientist, Too Could Aspire.

One Succeeds In Obtaining An Equivalent Production At A Lower Price By Improving The Arts, Trades And Agriculture And By Developing The Physical And Moral Qualities Of Workers, Farmers And Craftsmen.

Mathematicians Come To The Solution Of A Problem By The Simple Arrangement Of The Data, And Reducing The Reasoning To Such Simple Operations, To Judgments So Brief, That They Never Lose Sight Of The Evidence That Serves As Their Guide.

We May Lay It Down As An Incontestible Axiom, That, In All The Operations Of Art And Nature, Nothing Is Created; An Equal Quantity Of Matter Exists Both Before And After The Experiment; The Quality And Quantity Of The Elements Remain Precisely The Same; And Nothing Takes Place Beyond Changes And Modifications In The Combination Of These Elements. Upon This Principle The Whole Art Of Performing Chemical Experiments Depends: We Must Always Suppose An Exact Equality Between The Elements Of The Body Examined And Those Of The Products Of Its Analysis.