I Agree With Agassiz That Dogs Possess

The Loss Of These Tastes [for Poetry And Music] Is A Loss Of Happiness, And May Possibly Be Injurious To The Intellect, And More Probably To The Moral Character, By Enfeebling The Emotional Part Of Our Nature.

I Think It Can Be Shown That There Is Such An Unerring Power At Work In Natural Selection, Which Selects Exclusively For The Good Of Each Organic Being.

In My Simplicity, I Remember Wondering Why Every Gentleman Did Not Become An Ornithologist.

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.

It Is Not The Most Intellectual Of The Species That Survives; It Is Not The Strongest That Survives; But The Species That Survives Is The One That Is Able Best To Adapt And Adjust To The Changing Environment In Which It Finds Itself.