I Never Gave Up Christianity Until I

I See No Good Reason Why The Views Given This Volume [the Origin Of Species] Should Shock The Religious Feelings Of Any One. It Is Satisfactory, As Showing How Transient Such Impressions Are, To Remember That The Greatest Discovery Ever Made By Man, Namely, The Law Of Attraction Of Gravity, Was Also Attacked By Leibnitz, 'as Subversive Of Natural, And Inferentially Of Revealed, Religion.'

Whenever I Have Found That I Have Blundered, Or That My Work Has Been Imperfected, And When I Have Been Contemptuously Criticised, And Even When I Have Been Overpraised, So That I Have Felt Mortified, It Has Been My Greatest Comfort To Say Hundreds Of Times To Myself That 'i Have Worked As Hard As I Could, And No Man Can Do More Than This.'

Extinction Has Only Separated Groups: It Has By No Means Made Them; For If Every Form Which Has Ever Lived On This Earth Were Suddenly To Reappear, Though It Would Be Quite Impossible To Give Definitions By Which Each Group Could Be Distinguished From Other Groups, As All Would Blend Together By Steps As Fine As Those Between The Finest Existing Varieties, Nevertheless A Natural Classification, Or At Least A Natural Arrangement, Would Be Possible.

There Is No Fundamental Difference Between Man And Animals In Their Ability To Feel Pleasure And Pain, Happiness, And Misery.

From The First Dawn Of Life, All Organic Beings Are Found To Resemble Each Other In Descending Degrees, So That They Can Be Classed In Groups Under Groups. This Classification Is Evidently Not Arbitrary Like The Grouping Of Stars In Constellations.