I Ought, Or I Ought Not, Constitute

This Preservation Of Favourable Variations And The Destruction Of Injurious Variations, I Call Natural Selection, Or The Survival Of The Fittest. Variations Neither Useful Nor Injurious Would Not Be Affected By Natural Selection And Would Be Left A Fluctuating Element.

The Highest Possible Stage In Moral Culture Is When We Recognize That We Ought To Control Our Thoughts.

May We Not Suspect That The Vague But Very Real Fears Of Children, Which Are Quite Independent Of Experience, Are The Inherited Effects Of Real Dangers And Abject Superstitions During Ancient Savage Times?

The Most Important Factor In Survival Is Neither Intelligence Nor Strength But Adaptability.

At Some Future Period, Not Very Distant As Measured By Centuries, The Civilised Races Of Man Will Almost Certainly Exterminate And Replace Throughout The World The Savage Races. At The Same Time The Anthropomorphous Apes, As Professor Schaaffhausen Has Remarked, Will No Doubt Be Exterminated. The Break Will Then Be Rendered Wider, For It Will Intervene Between Man In A More Civilised State As We May Hope, Than The Caucasian And Some Ape As Low As A Baboon, Instead Of As At Present Between The Negro Or Australian And The Gorilla.