...conscience Looks Backwards And Judges Past Actions,

The Several Difficulties Here Discussed, Namely Our Not Finding In The Successive Formations Infinitely Numerous Transitional Links Between The Many Species Which Now Exist Or Have Existed; The Sudden Manner In Which Whole Groups Of Species Appear In Our European Formations; The Almost Entire Absence, As At Present Known, Of Fossiliferous Formations Beneath The Silurian Strata, Are All Undoubtedly Of The Gravest Nature.

It Is A Cursed Evil To Any Man To Become As Absorbed In Any Subject As I Am In Mine.

How So Many Absurd Rules Of Conduct, As Well As So Many Absurd Religious Beliefs, Have Originated, We Do Not Know; Nor How It Is That They Have Become, In All Quarters Of The World, So Deeply Impressed On The Minds Of Men; But It Is Worthy Of Remark That A Belief Constantly Inculcated During The Early Years Of Life, While The Brain Is Impressionable, Appears To Acquire Almost The Nature Of An Instinct; And The Very Essence Of An Instinct Is That It Is Followed Independently Of Reason.

On The Theory Of Natural Selection We Can Clearly Understand The Full Meaning Of That Old Canon In Natural History, “natura Non Facit Saltum.” This Canon, If We Look Only To The Present Inhabitants Of The World, Is Not Strictly Correct, But If We Include All Those Of Past Times, It Must By My Theory Be Strictly True.

...i Have Always Maintained That, Excepting Fools, Men Did Not Differ Much In Intellect, Only In Zeal And Hard Work; And I Still Think There Is An Eminently Important Difference.