I Ought, Or I Ought Not, Constitute

It Is Certain That There May Be Extraordinary Mental Activity With An Extremely Small Absolute Mass Of Nervous Matter: Thus The Wonderfully Diversified Instincts, Mental Powers, And Affections Of Ants Are Notorious, Yet Their Cerebral Ganglia Are Not So Large As The Quarter Of A Small Pin's Head. Under This Point Of View, The Brain Of An Ant Is One Of The Most Marvelous Atoms Of Matter In The World, Perhaps More So Than The Brain Of A Man.

...conscience Looks Backwards And Judges Past Actions, Inducing That Kind Of Dissatisfaction, Which If Weak We Call Regret, And If Severe Remorse.

Nothing Can Be More Improving To A Young Naturalist, Than A Journey In A Distant Country.

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.

I Am Almost Convinced (quite Contrary To Opinion I Started With) That Species Are Not (it Is Like Confessing A Murder) Immutable.