Some Few, And I Am One Of

A Grand And Almost Untrodden Field Of Inquiry Will Be Opened, On The Causes And Laws Of Variation, On Correlation Of Growth, On The Effects Of Use And Disuse, On The Direct Actions Of External Conditions, And So Forth.

I Fully Agree With All That You Say On The Advantages Of Spencer's Excellent Expression Of 'the Survival Of The Fittest.' This, However, Had Not Occurred To Me Till Reading Your Letter. It Is, However, A Great Objection To This Term That It Cannot Be Used As A Substantive Governing A Verb; And That This Is A Real Objection I Infer From H. Spencer Continually Using The Words, Natural Selection.

It May Be Doubted Whether Any Character Can Be Named Which Is Distinctive Of A Race And Is Constant.

Nothing Can Be More Hopeless Than To Attempt To Explain This Similarity Of Pattern In Members Of The Same Class, By Utility Or By The Doctrine Of Final Causes.

Whoever Is Led To Believe That Species Are Mutable Will Do Good Service By Conscientiously Expressing His Conviction; For Only Thus Can The Load Of Prejudice By Which This Subject Is Overwhelmed Be Removed.