Essays On Education And Kindred Subjects (Fiscle Part- 11) - Herbert Spencer (if you give a mouse a cookie read aloud txt) 📗
- Author: Herbert Spencer
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A Host Of Possible Systems." ... "This Order Is Determined By The Degree
Of Simplicity, Or, What Comes To The Same Thing, Of Generality Of Their
Phenomena." And The Arrangement He Deduces Runs Thus: _Mathematics_,
_Astronomy_, _Physics_, _Chemistry_, _Physiology_, _Social Physics_.
This He Asserts To Be "The True _Filiation_ Of The Sciences." He Asserts
Further, That The Principle Of Progression From A Greater To A Less
Degree Of Generality, "Which Gives This Order To The Whole Body Of
Science, Arranges The Parts Of Each Science." And, Finally, He Asserts
That The Gradations Thus Established _À Priori_ Among The Sciences, And
The Parts Of Each Science, "Is In Essential Conformity With The Order
Which Has Spontaneously Taken Place Among The Branches Of Natural
Philosophy;" Or, In Other Words--Corresponds With The Order Of Historic
Development.
Let Us Compare These Assertions With The Facts. That There May Be
Perfect Fairness, Let Us Make No Choice, But Take As The Field For Our
Comparison, The Succeeding Section Treating Of The First
Science--Mathematics; And Let Us Use None But M. Comte's Own Facts, And
His Own Admissions. Confining Ourselves To This One Science, Of Course
Our Comparisons Must Be Between Its Several Parts. M. Comte Says, That
The Parts Of Each Science Must Be Arranged In The Order Of Their
Decreasing Generality; And That This Order Of Decreasing Generality
Agrees With The Order Of Historical Development. Our Inquiry Must Be,
Then, Whether The History Of Mathematics Confirms This Statement.
Carrying Out His Principle, M. Comte Divides Mathematics Into "Abstract
Mathematics, Or The Calculus (Taking The Word In Its Most Extended
Sense) And Concrete Mathematics, Which Is Composed Of General Geometry
And Of Rational Mechanics." The Subject-Matter Of The First Of These Is
_Number_; The Subject-Matter Of The Second Includes _Space_, _Time_,
_Motion_, _Force_. The One Possesses The Highest Possible Degree Of
Generality; For All Things Whatever Admit Of Enumeration. The Others Are
Less General; Seeing That There Are Endless Phenomena That Are Not
Cognisable Either By General Geometry Or Rational Mechanics. In
Conformity With The Alleged Law, Therefore, The Evolution Of The
Calculus Must Throughout Have Preceded The Evolution Of The Concrete
Sub-Sciences. Now Somewhat Awkwardly For Him, The First Remark M. Comte
Makes Bearing Upon This Point Is, That "From An Historical Point Of
View, Mathematical Analysis _Appears To Have Risen Out Of_ The
Contemplation Of Geometrical And Mechanical Facts." True, He Goes On To
Say That, "It Is Not The Less Independent Of These Sciences Logically
Speaking;" For That "Analytical Ideas Are, Above All Others, Universal,
Abstract, And Simple; And Geometrical Conceptions Are Necessarily
Founded On Them."
We Will Not Take Advantage Of This Last Passage To Charge M. Comte With
Teaching, After The Fashion Of Hegel, That There Can Be Thought Without
Things Thought Of. We Are Content Simply To Compare The Two Assertions,
That Analysis Arose Out Of The Contemplation Of Geometrical And
Mechanical Facts, And That Geometrical Conceptions Are Founded Upon
Analytical Ones. Literally Interpreted They Exactly Cancel Each Other.
Interpreted, However, In A Liberal Sense, They Imply, What We Believe To
Be Demonstrable, That The Two Had _A Simultaneous Origin_. The Passage
Is Either Nonsense, Or It Is An Admission That Abstract And Concrete
Mathematics Are Coeval. Thus, At The Very First Step, The Alleged
Congruity Between The Order Of Generality And The Order Of Evolution
Does Not Hold Good.
But May It Not Be That Though Abstract And Concrete Mathematics Took
Their Rise At The Same Time, The One Afterwards Developed More Rapidly
Than The Other; And Has Ever Since Remained In Advance Of It? No: And
Again We Call M. Comte Himself As Witness. Fortunately For His Argument
He Has Said Nothing Respecting The Early Stages Of The Concrete And
Abstract Divisions After Their Divergence From A Common Root; Otherwise
The Advent Of Algebra Long After The Greek Geometry Had Reached A High
Development, Would Have Been An Inconvenient Fact For Him To Deal With.
But Passing Over This, And Limiting Ourselves To His Own Statements, We
Find, At The Opening Of The Next Chapter, The Admission, That "The
Historical Development Of The Abstract Portion Of Mathematical Science
Has, Since The Time Of Descartes, Been For The Most Part _Determined_ By
That Of The Concrete." Further On We Read Respecting Algebraic Functions
That "Most Functions Were Concrete In Their Origin--Even Those Which Are
At Present The Most Purely Abstract; And The Ancients Discovered Only
Through Geometrical Definitions Elementary Algebraic Properties Of
Functions To Which A Numerical Value Was Not Attached Till Long
Afterwards, Rendering Abstract To Us What Was Concrete To The Old
Geometers." How Do These Statements Tally With His Doctrine? Again,
Having Divided The Calculus Into Algebraic And Arithmetical, M. Comte
Admits, As Perforce He Must, That The Algebraic Is More General Than The
Arithmetical; Yet He Will Not Say That Algebra Preceded Arithmetic In
Point Of Time. And Again, Having Divided The Calculus Of Functions Into
The Calculus Of Direct Functions (Common Algebra) And The Calculus Of
Indirect Functions (Transcendental Analysis), He Is Obliged To Speak Of
This Last As Possessing A Higher Generality Than The First; Yet It Is
Far More Modern. Indeed, By Implication, M. Comte Himself Confesses This
Incongruity; For He Says:--"It Might Seem That The Transcendental
Analysis Ought To Be Studied Before The Ordinary, As It Provides The
Equations Which The Other Has To Resolve; But Though The Transcendental
_Is Logically Independent Of The Ordinary_, It Is Best To Follow The
Usual Method Of Study, Taking The Ordinary First." In All These Cases,
Then, As Well As At The Close Of The Section Where He Predicts That
Mathematicians Will In Time "Create Procedures Of _A Wider Generality_",
M. Comte Makes Admissions That Are Diametrically Opposed To The Alleged
Law.
In The Succeeding Chapters Treating Of The Concrete Department Of
Mathematics, We Find Similar Contradictions M. Comte Himself Names The
Geometry Of The Ancients _Special_ Geometry, And That Of Moderns The
_General_ Geometry. He Admits That While "The Ancients Studied Geometry
With Reference To The Bodies Under Notice, Or Specially; The Moderns
Study It With Reference To The _Phenomena_ To Be Considered, Or
Generally." He Admits That While "The Ancients Extracted All They Could
Out Of One Line Or Surface Before Passing To Another," "The Moderns,
Since Descartes, Employ Themselves On Questions Which Relate To Any
Figure Whatever." These Facts Are The Reverse Of What, According To His
Part 2 Chapter 3 (On The Genesis Of Science) Pg 103Theory, They Should Be. So, Too, In Mechanics. Before Dividing It Into
Statics And Dynamics, M. Comte Treats Of The Three Laws Of _Motion_, And
Is Obliged To Do So; For Statics, The More _General_ Of The Two
Divisions, Though It Does Not Involve Motion, Is Impossible As A Science
Until The Laws Of Motion Are Ascertained. Yet The Laws Of Motion Pertain
To Dynamics, The More _Special_ Of The Divisions. Further On He Points
Out That After Archimedes, Who Discovered The Law Of Equilibrium Of The
Lever, Statics Made No Progress Until The Establishment Of Dynamics
Enabled Us To Seek "The Conditions Of Equilibrium Through The Laws Of
The Composition Of Forces." And He Adds--"At This Day _This Is The
Method Universally Employed_. At The First Glance It Does Not Appear The
Most Rational--Dynamics Being More Complicated Than Statics, And
Precedence Being Natural To The Simpler. It Would, In Fact, Be More
Philosophical To Refer Dynamics To Statics, As Has Since Been Done."
Sundry Discoveries Are Afterwards Detailed, Showing How Completely The
Development Of Statics Has Been Achieved By Considering Its Problems
Dynamically; And Before The Close Of The Section M. Comte Remarks That
"Before Hydrostatics Could Be Comprehended Under Statics, It Was
Necessary That The Abstract Theory Of Equilibrium Should Be Made So
General As To Apply Directly To Fluids As Well As Solids. This Was
Accomplished When Lagrange Supplied, As The Basis Of The Whole Of
Rational Mechanics, The Single Principle Of Virtual Velocities." In
Which Statement We Have Two Facts Directly At Variance: With M. Comte's
Doctrine; First, That The Simpler Science, Statics, Reached Its Present
Development Only By The Aid Of The Principle Of Virtual Velocities,
Which Belongs To The More Complex Science, Dynamics; And That This
"Single Principle" Underlying All Rational Mechanics--This _Most
General Form_ Which Includes Alike The Relations Of Statical,
Hydro-Statical, And Dynamical Forces--Was Reached So Late As The Time Of
Lagrange.
Thus It Is _Not_ True That The Historical Succession Of The Divisions Of
Mathematics Has Corresponded With The Order Of Decreasing Generality. It
Is _Not_ True That Abstract Mathematics Was Evolved Antecedently To,
And Independently Of Concrete Mathematics. It Is _Not_ True That Of The
Subdivisions Of Abstract Mathematics, The More General Came Before The
More Special. And It Is _Not_ True That Concrete Mathematics, In Either
Of Its Two Sections, Began With The Most Abstract And Advanced To The
Less Abstract Truths.
It May Be Well To Mention, Parenthetically, That In Defending His
Alleged Law Of Progression From The General To The Special, M. Comte
Somewhere Comments Upon The Two Meanings Of The Word _General_, And The
Resulting Liability To Confusion. Without Now Discussing Whether The
Asserted Distinction Can Be Maintained In Other Cases, It Is Manifest
That It Does Not Exist Here. In Sundry Of The Instances Above Quoted,
The Endeavours Made By M. Comte Himself To Disguise, Or To Explain Away,
The Precedence Of The Special Over The General, Clearly Indicate That
The Generality Spoken Of Is Of The Kind Meant By His Formula. And It
Needs But A Brief Consideration Of The Matter To Show That, Even Did He
Attempt It, He Could Not Distinguish This Generality, Which, As Above
Proved, Frequently Comes Last, From The Generality Which He Says Always
Comes First. For What Is The Nature Of That Mental Process By Which
Objects, Dimensions, Weights, Times, And The Rest, Are Found Capable Of
Having Their Relations Expressed Numerically? It Is The Formation Of
Certain Abstract Conceptions Of Unity, Duality And Multiplicity, Which
Are Applicable To All Things Alike. It Is The Invention Of General
Symbols Serving To Express The Numerical Relations Of Entities, Whatever
Be Their Special Characters. And What Is The Nature Of The Mental
Process By Which Numbers Are Found Capable Of Having Their Relations
Expressed Algebraically? It Is Just The Same. It Is The Formation Of
Certain Abstract Conceptions Of Numerical Functions Which Are The Same
Whatever Be The Magnitudes Of The Numbers. It Is The Invention Of
General Symbols Serving To Express The Relations Between Numbers, As
Numbers Express The Relations Between Things. And Transcendental
Analysis Stands To Algebra In The Same Position That Algebra Stands In
To Arithmetic.
To Briefly Illustrate Their Respective Powers--Arithmetic Can Express In
One Formula The Value Of A _Particular_ Tangent To A _Particular_ Curve;
Algebra Can Express In One Formula The Values Of _All_ Tangents To A
_Particular_ Curve; Transcendental Analysis Can Express In One Formula
The Values Of _All_ Tangents To _All_ Curves. Just As Arithmetic Deals
With The Common Properties Of Lines, Areas, Bulks, Forces, Periods; So
Does Algebra Deal With The Common Properties Of The Numbers Which
Arithmetic Presents; So Does Transcendental Analysis Deal With The
Common Properties Of The Equations Exhibited By Algebra. Thus, The
Generality Of The Higher Branches Of The Calculus, When Compared With
The Lower, Is The Same Kind Of Generality As That Of The Lower Branches
When Compared With Geometry Or Mechanics. And On Examination It Will Be
Found That The Like Relation Exists In The Various Other Cases Above
Given.
Having Shown That M. Comte's Alleged Law Of Progression Does Not Hold
Among The Several Parts Of The Same Science, Let Us See How It Agrees
With The Facts When Applied To Separate Sciences. "Astronomy," Says M.
Comte, At The Opening Of Book Iii., "Was A Positive Science, In Its
Geometrical Aspect, From The Earliest Days Of The School Of Alexandria;
But Physics, Which We Are Now To Consider, Had No Positive Character At
All Till Galileo Made His Great Discoveries On The Fall Of Heavy
Bodies." On This, Our Comment Is Simply That It Is A Misrepresentation
Based Upon An Arbitrary Misuse Of Words--A Mere Verbal Artifice. By
Choosing To Exclude From Terrestrial Physics Those Laws Of Magnitude,
Motion, And Position, Which He Includes In Celestial Physics, M. Comte
Makes It Appear That The One
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