This Fundamental Subject Of Natural Selection Will

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 Am Not Very Sceptical, — A Frame Of Mind Which I Believe To Be Injurious To The Progress Of Science. A Good Deal Of Scepticism In A Scientific Man Is Advisable To Avoid Much Loss Of Time, But I Have Met With Not A Few Men, Who, I Feel Sure, Have Often Thus Been Deterred From Experiment Or Observations, Which Would Have Proved Directly Or Indirectly Serviceable .

It Is A Truly Wonderful Fact - The Wonder Of Which We Are Apt To Overlook From Familiarity - That All Animals And All Plants Throughout All Time And Space Should Be Related To Each Other In Group Subordinate To Group.

Often A Cold Shudder Has Run Through Me, And I Have Asked Myself Whether I May Have Not Devoted Myself To A Fantasy.

The More We Know Of The Fixed Laws Of Nature The More Incredible Do Miracles Become, - That The Men At That Time Were Ignorant And Credulous To A Degree Almost Incomprehensible By Us, - That The Gospels Cannot Be Proved To Have Been Written Simultaneously With The Events, - That They Differ In Many Important Details, Far Too Important As It Seemed To Me To Be Admitted As The Usual Inaccuracies Of Eye-witnesses; - By Such Reflections As These... I Gradually Came To Disbelieve In Christianity As A Divine Revelation.