The Most Energetic Workers I Have Encountered

The Main Conclusion Arrived At In This Work, Namely That Man Is Descended From Some Lowly-organised Form, Will, I Regret To Think, Be Highly Distasteful To Many Persons. But There Can Hardly Be A Doubt That We Are Descended From Barbarians.

But Then With Me The Horrid Doubt Always Arises Whether The Convictions Of Man's Mind, Which Has Been Developed From The Mind Of The Lower Animals, Are Of Any Value Or At All Trustworthy. Would Any One Trust In The Convictions Of A Monkey's Mind, If There Are Any Convictions In Such A Mind?

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

Nothing Exists For Itself Alone, But Only In Relation To Other Forms Of Life

There Are Several Other Sources Of Enjoyment In A Long Voyage, Which Are Of A More Reasonable Nature. The Map Of The World Ceases To Be A Blank; It Becomes A Picture Full Of The Most Varied And Animated Figures.